- Social psychology (psychology)
Social psychology is the scientific study of how people's
thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others (Allport, 1985). By this definition, "scientific" refers to the empiricalmethod of investigation. The terms "thoughts", "feelings", and "behaviors" include all of the psychological variables that are measurable in a human being. The statement that others may be "imagined" or "implied" suggests that we are prone to social influence even when no other people are present, such as when watching television, or following internalized cultural norms.
Social psychologists typically explain human behavior as a result of the interaction of mental states and immediate social situations. In
Kurt Lewin's (1951) famous heuristic behavior can be viewed as a function of the person and the environment, "B=f(P,E)". In general, social psychologists have a preference for laboratorybased, empirical findings. Their theories tend to be specific and focused, rather than global and general.
Social psychology is an interdisciplinary domain that bridges the gap between
psychologyand sociology. During the years immediately following World War II, there was frequent collaboration between psychologists and sociologists (Sewell, 1989). However, the two disciplines have become increasingly specialized and isolated from each other in recent years, with sociologists focusing on "macro variables" (e.g. social structure) to a much greater extent. Nevertheless, sociological approaches to social psychology remain an important counterpart to psychological research in this area.
In addition to the split between psychology and sociology, there has been a somewhat less pronounced difference in emphasis between American social psychologists and European social psychologists. As a broad generalization, American researchers traditionally have focused more on the individual, whereas Europeans have paid more attention to group level phenomena (Moscovici & Markova, 2006).
The discipline of social psychology began in the
United Statesat the dawn of the 20th Century. The first published study in this area was an experiment by Norman Triplett(1898) on the phenomenon of social facilitation. During the 1930s, many Gestalt psychologists, particularly Kurt Lewin, fled to the United States from Nazi Germany. They were instrumental in developing the field as something separate from the behavioral and psychoanalytic schools that were dominant during that time, and social psychology has always maintained the legacy of their interests in perception and cognition. Attitudes and a variety of small group phenomena were the most commonly studied topics in this era.
During WWII, social psychologists studied
persuasionand propagandafor the U.S. military. After the war, researchers became interested in a variety of social problems, including gender issues and racial prejudice. In the sixties, there was growing interest in a variety of new topics, such as cognitive dissonance, bystander intervention, and aggression. By the 1970s, however, social psychology in America had reached a crisis. There was heated debate over the ethics of laboratory experimentation, whether or not attitudes really predicted behavior, and how much science could be done in a cultural context (see Gergen, 1973). This was also the time when a radical situationist approach challenged the relevance of self and personality in psychology.
Social psychology reached maturity in both theory and method during the 1980s and 1990s. Careful ethical standards now regulate research, and greater pluralism and
multiculturalism perspectives have emerged. Modern researchers are interested in a variety of phenomena, but attribution, social cognition, and the self-concept are perhaps the greatest areas of growth in recent years. Social psychologists have also maintained their applied interests with contributions in health and environmental psychology, as well as the psychology of the legal system.
The study of attitudes is a core topic in social psychology. Attitudes are involved in virtually every other area of the discipline, including conformity,
interpersonal attraction, social perception, and prejudice. In social psychology, attitudes are defined as learned, global evaluations of a person, object, place, or issue that influence thought and action (Perloff, 2003). Put more simply, attitudes are basic expressions of approval or disapproval, favorability or unfavorability, or as Bem (1970) put it, likes and dislikes. Examples would include liking chocolate ice cream, being anti-abortion, or endorsing the values of a particular political party.
Social psychologists have studied attitude formation, the structure of attitudes, attitude change, the function of attitudes, and the relationship between attitudes and behavior. Because people are influenced by the situation, general attitudes are not always good predictors of specific behavior. For a variety of reasons, a person may value the environment and not recycle a can on a particular day. Attitudes that are well remembered and central to our
self-concept, however, are more likely to lead to behavior, and measures of general attitudes do predict patterns of behavior over time.
Much of the recent research on attitudes is on the distinction between traditional, self-report attitude measures and "implicit" or unconscious attitudes. For example, experiments using the
Implicit Association Testhave found that people often demonstrate bias against other races, even when their questionnaire responses reveal equal mindedness. One study found that explicit attitudes correlate with verbal behavior in interracial interactions, whereas implicit attitudes correlate with nonverbal behavior (Heider & Skowronski, 2007).
The topic of
persuasionhas received a great deal of attention in recent years. Persuasion is an active method of influence that attempts to guide people toward the adoption of an attitude, idea, or behavior by rational or emotive means. Persuasion relies on "appeals" rather than strong pressure or coercion. Numerous variables have been found to influence the persuasion process, and these are normally presented in four major categories: "who" said "what" to "whom" and "how".
#The Communicator, including
credibility, expertise, trustworthiness, and attractiveness.
Message, including varying degrees of reason, emotion(such as fear), one-sided or two sided arguments, and other types of informational content.
Audience, including a variety of demographics, personality traits, and preferences.
#The Channel, including the printed word, radio, television, the internet, or face-to-face interactions.
Dual process theories of persuasion (such as the
elaboration likelihood model) maintain that the persuasive process is mediated by two separate "routes." Persuasion can be accomplished by either superficial aspects of the communication or the internal logic of the message. Whether someone is persuaded by a popular celebrity or factual arguments is largely determined by the ability and motivation of the audience. However, decades of research have demonstrated that deeply held attitudes are remarkably resistant to persuasion under normal circumstances. Fact|date=June 2007
Social cognitionis a growing area of social psychology that studies how people perceive, think about, and remember information about others. One assumption in social cognition is that reality is too complex to easily discern, and so we see the world according to simplified schemas or images of reality. Schemas are generalized mental representations that organize knowledge and guide information processing. For example, one's schema for mice might include the expectation that they are small, and furry, and eat cheese. Social cognition proposes that cultural groups develop similar schemas. Individuals who share schemas can essentially have the same thoughts when confronted with a stimulus. For example, schemas often operate automatically and unintentionally, and can lead to biases in perceptionand memory. Schematic expectations may lead us to see something that is not there. One experiment found that people are more likely to misperceive a weapon in the hands of a black man than a white man (Correll, et al., 2002). This type of schema is actually a stereotype, a generalized set of beliefs about a particular group of people. Stereotypes are often related to negative or preferential attitudes ( prejudice) and behavior ( discrimination). Schemas for types of events (e.g. going to McDonalds, doing laundry) are known as "scripts".
Another major concept in social cognition is attribution. Attributions are the explanations we make for people's behavior, either our own behavior or the behavior of others. An attribution can be either internal or external. "Internal" or dispositional attributions assign causality to factors within the person, such as ability or personality. "External" or situational attributions assign causality to an outside factor, such as the weather. Numerous biases in the attribution process have been discovered:
Fundamental attribution error- the tendency to make dispositional attributions for behavior. The actor-observer effect is a refinement of this bias, the tendency to make dispositional attributions for other people's behavior and situational attributions for our own.
Just-world phenomenon- the tendency to blame victims (a dispositional attribution) for their suffering. This is believed to be motivated by people's anxiety that good people, including themselves, could be victimized in an unjust world.
Self-serving bias- the tendency to take credit for successes, and blame others for failure. Researchers have found that depressed individuals often lack this bias and actually have more realistic perceptions of reality. Heuristics are cognitive short cuts. Instead of weighing all the evidence when making a decision, people rely on heuristics to save time and energy. The availability heuristicoccurs when people estimate the probabilityof an outcome based on how easy that outcome is to imagine. As such, vivid or highly memorable possibilities will be perceived as more likely than those that are harder to picture or are difficult to understand, resulting in a corresponding cognitive bias.
There are a number of other biases that have been found by social cognition researchers. The
hindsight biasis a false memory of having predicted events, or an exaggeration of actual predictions, after becoming aware of the outcome. The confirmation biasis a type of bias leading to the tendency to search for, or interpret information in a way that confirms one's preconceptions.
The fields of social psychology and personality have merged over the years, and social psychologists have developed an interest in a variety of self-related phenomena. In contrast with traditional personality theory, however, social psychologists place a greater emphasis on "cognitions" than on "traits". Much research focuses on the
self-concept, which is a person's understanding of his or her self. The self-concept can be divided into a cognitive component, known as the "self-schema", and an evaluative component, the "self-esteem". The need to maintain a healthy self-esteemis recognized as a central human motivationin the field of social psychology. Self-efficacybeliefs are an aspect of the self-schema. Self-efficacy refers to an individual's expectation that performance on some task will be effective and successful.
People develop their self-concepts by a variety of means, including
introspection, feedback from others, self-perception, and social comparison. By comparison to relevant others, people gain information about themselves, and they make inferences that are relevant to self-esteem. Social comparisons can be either "upward" or "downward", that is, comparisons to people who are either higher in status or ability, or lower in status or ability. Downward comparisons are often made in order to elevate self-esteem.
Self-perception is a specialized form of attribution that involves making inferences about oneself after observing one's own behavior. Psychologists have found that too many extrinsic rewards (e.g. money) tend to reduce intrinsic motivation through the self-perception process. People's attention is directed to the reward and they lose interest in the task when the reward is no longer offered. This is an important exception to
Cognitive dissonanceis a feeling of unpleasant arousalcaused by noticing an inconsistency among one's cognitions (Festinger, 1957). Cognitive dissonance was originally developed as a theory of attitude change, but it is now considered to be a self theory by most social psychologists. Dissonance is strongest when a discrepancy has been noticed between one's self-concept and one's behavior, e.g. doing something that makes one ashamed. This can result in "self-justification" as the individual attempts to deal with the threat. Cognitive dissonance typically leads to a change in attitude, a change in behavior, a self-affirmation, or a rationalization of the behavior.
An example of cognitive dissonance is smoking. Smoking cigarettes increases the risk of cancer, which is threatening to the self-concept of the individual who smokes. Most of us believe ourselves to be intelligent and rational, and the idea of doing something foolish and self-destructive causes dissonance. To reduce this uncomfortable tension, smokers tend to make excuses for themselves, such as "I'm going to die anyway, so it doesn't matter."
Social influence refers to the way people affect the thoughts, feelings, and behaviors of others. Like the study of attitudes, it is a traditional, core topic in social psychology. In fact, research on social influence overlaps considerably with research on attitudes and
persuasion. Social influence is also closely related to the study of group dynamics, as most of the principles of influence are strongest when they take place in social groups.
Conformity is the most common and pervasive form of social influence. It is generally defined as the tendency to act or think like other members of a group. Group size,
unanimity, cohesion, status, and prior commitment all help to determine the level of conformity in an individual. Conformity is usually viewed as a negative tendency in American culture, but a certain amount of conformity is not only necessary and normal, but probably essential for a community to function.
The two major motives in conformity are: 1) "normative influence", the tendency to conform in order to gain social acceptance, and avoid social rejection or conflict, as in
peer pressure; and 2) "informational influence", which is based on the desire to obtain useful information through conformity, and thereby achieve a correct or appropriate result. "Minority influence" is the degree to which a smaller faction within the group influences the group during decision making. Note that this refers to a minority position on some issue, not an ethnic minority. Their influence is primarily informational and depends on consistent adherence to a position, degree of defection from the majority, and the status and self-confidence of the minority members. Reactance is a tendency to assert oneself by doing the opposite of what is expected. This phenomenon is also known as "anticonformity" and it appears to be more common in men than in women.
There are two other major areas of social influence research. Compliance refers to any change in behavior that is due to a request or suggestion from another person. The
Foot-in-the-door techniqueis a compliance method in which the persuader requests a small favor and then follows up with a larger favor, e.g. asking for the time, and then asking for ten dollars. A related trick is the Bait and switch(Cialdini, 2000). The third major form of social influence is obedience. This is a change in behavior that is the result of a direct order or command from another person.
A different kind of social influence is the
self-fulfilling prophecy. This is a prediction that, in being made, actually causes itself to become true. For example, in the stock market, if it is widely believed that a crash is imminent, investors may lose confidence, sell most of their stock, and actually cause the crash. Likewise, people may expect hostility in others and actually induce this hosility by their own behavior.
A group is two or more people that interact, influence each other, and share a common identity. Groups have a number of emergent qualities that distinguish them from aggregates:
*Norms - implicit rules and expectations for group members to follow, e.g. saying thank you, shaking hands.
Roles - implicit rules and expectations for specific members within the group, e.g. the oldest sibling, who may have additional responsibilities in the family.
*Relations - patterns of liking within the group, and also differences in prestige or status, e.g. leaders, popular people.
Temporary groups and aggregates share few or none of these features, and do not qualify as true social groups. People waiting in line to get on a bus, for example, do not constitute a group.
Groups are important not only because they offer social support, resources, and a feeling of belonging, but because they supplement an individual's self-concept. To a large extent, humans define themselves by the group memberships which form their
social identity(Tajfel & Turner, 1986). The shared social identity of individuals within a group influences intergroup behavior, the way in which groups behave towards and perceive each other. These perceptions and behaviors in turn define the social identity of individuals within the interacting groups. The tendency to define oneself by membership of a group leads to "intergroup discrimination", which involves favorable perceptions and behaviors directed towards the in-group, but negative perceptions and behaviors directed towards the out-group. Intergroup discrimination leads to prejudice and stereotyping, while the processes of social facilitationand group polarizationencourage extreme behaviors towards the out-group.
Groups often moderate and improve
decision making, and are frequently relied upon for these benefits, such as committees and juries. A number of group biases, however, can interfere with effective decision making. For example, group polarization, formerly known as the "risky shift", occurs when people polarize their views in a more extreme direction after group discussion. More problematic is the phenomenon of groupthink. This is a collective thinking defect that is characterized by a premature consensus or an incorrect assumption of consensus, caused by members of a group failing to promote views which are not consistent with the views of other members. Groupthink occurs in a variety of situations, including isolation of a group and the presence of a highly directive leader. Janis (1972) offered the 1961 Bay of Pigs Invasionas a historical case of groupthink.
Groups also affect performance and
productivity. Social facilitation, for example, is a tendency to work harder and faster in the presence of others. Social facilitation increases the likelihood of the "dominant response", which tends to improve performance on simple tasks and reduce it on complex tasks. In contrast, social loafingis the tendency of individuals to slack when working in a group. Social loafing is common when the task is considered unimportant and individual contributions are not easy to see.
Social psychologists study a variety of group related, or collective phenomena such as the behavior of
crowds. An important concept in this area is deindividuation, a reduced state of self-awarenessthat can be caused by feelings of anonymity. Deindividuation is associated with uninhibited and sometimes dangerous behavior. It is common in crowds and mobs, but it can also be caused by a disguise, a uniform, alcohol, dark environments, or online anonymity.
Relations with others
Social psychologists are interested in the question of why people sometimes act in a "prosocial" way (helping, liking, or loving others), but at other times act in an "antisocial" way (hostility, aggression, or prejudice against others).
Aggressioncan be defined as any behavior that is intended to harm another human being. "Hostile" aggression is accompanied by strong emotions, particularly anger. Harming the other person is the goal. "Instrumental" aggression is only a means to an end. Harming the person is used to obtain some other goal, such as money. Research indicates that there are many causes of aggression, including biological factors like testosteroneand environmental factors, such as social learning. Immediate situational factors such as frustrationare also important in triggering an aggressive response.
Although violence is a fact of life, people are also capable of helping each other, even complete strangers in emergencies. Research indicates that
altruismoccurs when a person feels empathyfor another individual, even in the absence of other motives (Batson, 1998). However, according to the bystander effect, the probability of receiving help in an emergency situation drops as the number of bystanders increases. This is due to conformity effects and a "diffusion of responsibility" (Latane, 1981).
Another major area in the study of people's relations to each other is
interpersonal attraction. This refers to all of the forces that lead people to like each other, establish relationships, and in some cases, fall in love. Several general principles have been discovered by researchers in this area:
*Proximity - physical proximity increases attraction, as opposed to long distance relationships which are more at risk.
*Familiarity - "mere exposure" to others increases attraction, even when the exposure is not consciously realized.
*Similarity - the more similar two people are in attitudes, background, and other traits, the more probable it is that they will like each other (Byrne, 1961). Contrary to popular opinion, opposites do not usually attract.
Physical attractivenessis an important element of romantic relationships, particularly in the early stages which are characterized by high levels of passion. Later on, similarity becomes more important and the type of love people experience shifts from passionate to companionate. Robert Sternberg(1986) has suggested that there are actually three components to love: intimacy, passion, and commitment.
social exchange theory, relationships are based on rational choice and cost-benefit analysis. If one partner's costs begin to outweigh his or her benefits, that person may leave the relationship, especially if there are good alternatives available. With time, long term relationships tend to become "communal" rather than simply based on exchange.
Interpersonal perception examines the beliefs that interacting people have about each other. This area differs from social cognition and person perception by being interpersonal rather than intrapersonal. By requiring at least two real people to interact, research in this area examines unique phenomena such as:
*accuracy - the correctness of A's beliefs about B
*self-other agreement - whether A's beliefs about B matches B's beliefs about himself
*similarity - whether A's and B's beliefs match
*projection/assumed similarity - whether A's beliefs about B match A's beliefs about herself
*reciprocity - the similarity of A's and B's beliefs about each other
*meta-accuracy - whether A knows how others see her
*assumed projection - whether A thinks others see her as she sees them These variables cannot be assessed in studies that ask people to form beliefs about fictitious targets.
Although interest in this area has grown rapidly with the publication of
Malcolm Gladwell's 2005 book Blink and Nalini Ambady's "thin-slices" research (Ambady & Rosenthal, 1992), the discipline is still very young, having only been formally defined by David Kenny in 1994. The sparsity of research, in particular on the accuracy of first-impressions, means that social psychologists know a lot about what people think about others, but far less about whether they are right.
Many attribute this to a criticism that Cronbach wrote in 1955 about how impression accuracy was calculated, which resulted in a 30-year hiatus in research. During that time, psychologists focused on consensus (whether A and B agree in their beliefs about C) rather than accuracy, although Kenny (1994) has argued that consensus is neither necessary nor sufficient for accuracy.
Today, the use of
correlations instead of discrepancy scores to measure accuracy (Funder, 1995) and the development of the Big Five model of personality have overcome Cronbach's criticisms and led to a wave of new research . People more accurately perceive Extraversion and Conscientiousnessin strangers than they do the other personality domains (Watson, 1989). A 5-second interaction tells you as much as 15 minutes on these domains (Ambady & Rosenthal, 1992), and video tells you more than audio alone (Borkenau & Liebler, 1992).
Surprisingly, viewing peoples' personal websites or "online profiles" (as on
MySpace, Conscientiousnessand Open-Mindedness as their long-term friends (Vazire & Gosling, 2004). The question of whether social-networking sites lead to accurate first-impressions has inspired Sam Gosling of the University of Texas at Austin and David Evans formerly of Classmates.comto launch an ambitious project to measure the accuracy of first-impressions worldwide (see [http://www.YouJustGetMe.com YouJustGetMe.com] ).
Social psychology is an
empiricalscience that attempts to answer a variety of questions about human behavior by testing hypotheses, both in the laboratory and in the field. Careful attention to sampling, research design, and statistical analysis is important, and results are published in peer reviewed journals such as "The Journal of Experimental Social Psychology", "Personality and Social Psychology Bulletin" and "The Journal of Personality and Social Psychology".
*Experimental methods involve the researcher altering a variable in the environment and measuring the effect on another variable. An example would be allowing two groups of children to play violent or nonviolent videogames, and then observing their subsequent level of aggression during free-play period. A valid experiment is controlled and uses
*Correlational methods examine the statistical association between two naturally occurring variables. For example, one could correlate the amount of violent television children watch at home with the number of violent incidents the children participate in at school. Note that this study would "not" prove that violent TV causes aggression in children. It's quite possible that aggressive children choose to watch more violent TV.
*Observational methods are purely descriptive and include
naturalistic observation, "contrived" observation, participant observation, and archival analysis. These are less common in social psychology but are sometimes used when first investigating a phenomenon. An example would be to unobtrusively observe children on a playground (with a videocamera, perhaps) and record the number and types of aggressive actions displayed.
Whenever possible, social psychologists rely on controlled experimentation. Controlled experiments require the manipulation of one or more independent variables in order to examine the effect on a dependent variable. Experiments are useful in social psychology because they are high in
internal validity, meaning that they are free from the influence of confoundingor extraneous variables, and so are more likely to accurately indicate a causal relationship. However, the small samples used in controlled experiments are typically low in external validity, or the degree to which the results can be generalized the larger population. There is usually a trade-off between experimental control ( internal validity) and being able to generalize to the population ( external validity).
Because it is usually impossible to test everyone, research tends to be conducted on a sample of persons from the wider
population. Social psychologists frequently use survey research when they are interested in results that are high in external validity. Surveys use various forms of random sampling to obtain a sample of respondents that are representative of a population. This type of research is usually descriptive or correlational because there is no experimental control over variables. However, new statistical methods like structural equation modelingare being used to test for potential causal relationships in this type of data.
Regardless of which method is used, it is important to evaluate the research hypothesis in light of the results, either confirming or rejecting the original prediction. Social psychologists use statistics and probability testing to judge their results, which define a significant finding as less than 5% likely to be due to chance. Replications are important, to ensure that the result is valid and not due to chance, or some feature of a particular sample.
The goal of social psychology is to understand cognition and behavior as they naturally occur in a social context, but the very act of observing people can influence and alter their behavior. For this reason, many social psychology experiments utilize "
deception" to conceal or distort certain aspects of the study. Deception may include false cover stories, false participants (known as confederates or stooges), false feedback given to the participants, and so on.
The practice of deception has been challenged by some psychologists who maintain that deception under any circumstances is unethical, and that other research strategies (e.g.
roleplaying) should be used instead. Unfortunately, research has shown that role-playing studies do not produce the same results as deception studies and this has cast doubt on their validity. In addition to deception, experimenters have at times put people into potentially uncomfortable or embarrassing situations (e.g. the Milgram experiment, Stanford prison experiment), and this has also been criticized for ethical reasons.
To protect the rights and well-being of research participants, and at the same time discover meaningful results and insights into human behavior, virtually all social psychology research must pass an ethical review process. At most colleges and universities, this is conducted by an ethics committee or
Institutional Review Board. This group examines the proposed research to make sure that no harm is done to the participants, and that the benefits of the study outweigh any possible risks or discomforts to people taking part in the study.
Furthermore, a process of "
informed consent" is often used to make sure that volunteers know what will happen in the experiment and understand that they are allowed to quit the experiment at any time. A " debriefing" is typically done at the conclusion of the experiment in order to reveal any deceptions used and generally make sure that the participants are unharmed by the procedures. Today, most research in social psychology involves no more risk of harm than can be expected from routine psychological testing or normal daily activities.
Well known experiments and studies that have influenced social psychology include:
Asch conformity experimentsfrom the 1950s, a series of studies that starkly demonstrated the power of conformity on people's estimation of the length of lines (Asch, 1955). On over a third of the trials, participants conformed to the majority, even though the majority judgment was clearly wrong. Seventy-five percent of the participants conformed at least once during the experiment.
Muzafer Sherif's (1954) Robbers' Cave Experiment, which divided boys into two competing groups to explore how much hostility and aggression would emerge. Also known as realistic group conflict theory, because the intergroup conflict was induced through competition over resources.
Leon Festinger's cognitive dissonance experiment, in which subjects were asked to perform a boring task. They were divided into 2 groups and given two different pay scales. At the end of the study, some participants were paid $1 to say that they enjoyed the task and another group of participants was paid $20 to say the same lie. The first group ($1) later reported liking the task better than the second group ($20). People justified the lie by changing their previously unfavorable attitudes about the task (Festinger & Carlsmith, 1959).
Milgram experiment, which studied how far people would go to obey an authorityfigure. Following the events of The Holocaustin World War II, the experiment showed that normal American citizens were capable of following orders to the point of causing extreme suffering in an innocent human being (Milgram, 1975).
Albert Bandura's Bobo doll experiment, which demonstrated how aggression is learned by imitation(Bandura, et al., 1961). This was one of the first studies in a long line of research showing how exposure to media violence leads to aggressive behavior in the observers.
Stanford prison experiment, by Philip Zimbardo, where a simulated exercise between student prisoners and guards showed how far people would follow an adopted role. This was an important demonstration of the power of the immediate social situation, and its capacity to overwhelm normal personality traits (Haney, Banks, & Zimbardo, 1973).
Primary sources of social psychology research
Asian Journal of Social Psychology
Basic and Applied Social Psychology
British Journal of Social Psychology
European Journal of Social Psychology
Journal of Applied Social Psychology
Journal of Experimental Social Psychology
Journal of Personality and Social Psychology
Journal of Social Psychology
Personality and Social Psychology Bulletin
Personality and Social Psychology Review
*Important publications in social psychology
List of cognitive biases
List of social psychologists
List of social psychology theories
Social psychology (sociology)
Society for Personality and Social Psychology
Society of Experimental Social Psychology
*Allport, G. W. (1985). The historical background of social psychology. In G. Lindzey & E. Aronson (Eds.), "The handbook of social psychology." New York: McGraw Hill.
*Ambady, N., & Rosenthal, R. (1992). Thin slices of expressive behavior as predictors of interpersonal consequences: A meta-analysis. "Psychological Bulletin", 111, 256-274.
*Asch, S. E. (1955). Opinions and social pressure. "Scientific American", pp. 31-35.
*Bandura, A., Ross, D. & Ross, S. A. (1961). Transmission of aggression through imitation of aggressive models. "Journal of Abnormal and Social Psychology", "63", 575-582.
*Batson, C. D. (1998). Altruism and prosocial behavior. In D. T. Gilbert, S. T. Fiske, & G. Lindzey, (Eds.),"The handbook of social psychology." New York: McGraw Hill.
*Bem, D. (1970). "Beliefs, attitudes, and human affairs". Belmont, CA: Brooks/Cole.
*Borkenau, P., & Liebler, A. (1992). Trait inferences: Sources of validity at zero acquaintance. "Journal of Personality and Social Psychology", 62, 645-647.
*Byrne, D. (1961). Interpersonal attraction and attitude similarity. "Journal of Abnormal and Social Psychology", "62", 713-715.
*Cialdini, R. B. (2000). "Influence: Science and practice". Allyn and Bacon.
*Correll, J., Park, B., Judd, C. M., & Wittenbrink, B. (2002). The police officer's dilemma: Using ethnicity to disambiguate potentially threatening individuals. "Journal of Personality and Social Psychology", "83", 1314-1329.
*Cronbach, L. J. (1955). Processes affecting scores on "understanding of others" and "assumed similarity." "Psychological Bulletin", 52, 177-193.
*Festinger, L. (1957). "A theory of cognitive dissonance". Stanford, CA: Stanford University Press.
*Festinger, L. & Carlsmith, J. M. (1959). Cognitive consequences of forced compliance. "Journal of Abnormal and Social Psychology", "58", 203-211.
*Funder, D.C. (1995). On the accuracy of personality judgment: A realistic approach. "Psychological Review", 102, 652-670.
*Gladwell M. (2005). Blink: the power of thinking without thinking. Boston, MA: Little, Brown.
*Gergen, K. J. (1973). Social psychology as history. "Journal of Personality and Social Psychology"," 26", 309-320.
*Haney, C., Banks, W.C. & Zimbardo, P.G. (1973). Interpersonal dynamics in a simulated prison. "International Journal of Criminology and Penology", "1", 69-97.
*Heider, J. D., & Skowronski, J. J. (2007). Improving the predictive validity of the Implicit Association Test. "North American Journal of Psychology", "9", 53-76.
*Janis, I. L. (1972). "Victims of groupthink". Boston, MA: Houghton Mifflin Company.
*Kenny, D.A. (1994). Interpersonal perception: A social relations analysis. New York, NY: Guilford Press.
*Latane, B. (1981). The psychology of social impact. "American Psychologist", 36, 343-356.
*Lewin, K. (1951). "Field theory in social science: Selected theoretical papers." D. Cartwright (Ed.). New York: Harper & Row.
*Moscovici, S. & Markova, I. (2006). "The making of modern social psychology". Cambridge, UK: Polity Press.
*Mesoudi, A. (2007). Using the methods of experimental social psychology to study cultural evolution. "Journal of Social, Evolutionary & Cultural Psychology, 1(2)," 35-58.
*Milgram, S. (1975). "Obedience to authority". Harper and Bros.
*Sewell, W. H. (1989). Some reflections on the golden age of interdisciplinary social psychology. "Annual Review of Sociology". Vol. 15.
*Schaller, M., Simpson, J.A., & Kenrick, D.T. (2006). "Evolution and Social Psychology (Frontiers of Social Psychology)". Psychology Press: New York ISBN-10: 1841694177
*Sherif, M. (1954). Experiments in group conflict. "Scientific American", "195", 54-58.
*Sternberg, R. J. (1986) A triangular theory of love. "Psychological Review", "93", 119-135.
*Perloff, R. M. (2003). "The dynamics of persuasion". Mahwah, NJ: Lawrence Erlbaum.
*Tajfel, H. & Turner, J. C. (1986). The social identity theory of intergroup behavior. In S. Worchel & W. G. Austin (Eds.), "Psychology of intergroup relations". Chicago, IL: Nelson-Hall.
*Triplett, N. (1898). The dynamogenic factors in pacemaking and competition. "American Journal of Psychology". "9", 507-533.
*Vazier, S. & Gosling, S.D. (2004). e-Perceptions: Personality impressions based on personal websites. "Journal of Personality and Social Psychology", 87, 123-132.
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