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1936 - Sherif Study
Study in which participants were exposed to the autokinetic effect - a visual illusion in which a small, stationary dot of light in a dark room appears to move - and were asked how much the light moved
Study in which participants joined other participants in a small group and told to say answers out loud
Study in which there were four trials
It was an ambiguous and difficult task
Participants could easily doubt their own judgment, “Did it move one inch or was it two?”
Participants relied on others’ judgements as valid information
1956 - Asch Line Judgement Study
Study in which participants judged whether two lines were the same length (very easy task, no ambiguity about the correct answer)
Study in which there was a group of confederates; after a couple of rounds, the confederates start to give an obviously wrong answer
When participants were alone, they answered correctly 100% of the time
In the presence of the (wrong) confederates, they erroneously conformed to majority on 1/3 of the trials
75% of participants conformed at least once
1966 - Freedman and Fraser Study
Study which revealed “Foot-in-the-Door” Reason-Based Compliance
Condition 1: Will you display this large sign in your yard?
Condition 2: Will you display this small sign in your window? followed by “Will you display this large sign in your yard?
Study which found the percentage of those who agreed to the large sign:
Condition 1: 17%
Condition 2: 76%
1969 - Carlsmith and Gross Study
Study in which participants were to make some phone calls for a confederate
But first,
Condition 1: participants shocked confederate’s hands when he got an answer wrong (shocks were known to be painful and unpleasant)
Condition 2: participants rung a bell with confederate got an answer wrong
Result: more participants agreed to make calls after shocking the participant as opposed to ringing the bell; they were probably feeling more guilty
75% vs 25%
1972 - Isen and Levin Study
Study in which participants were given a cookie (positive mood) or not (neutral mood)
Asked if they would serve as a confederate for a quick experiment
Half told their role was to help the “real” participant
Half told their role was to hinder the “real” participant
Result: positive mood increased compliance only when the task involved helping someone else, not hindering them
1975 / 1984 - Cialdini Study
Study which revealed the Reciprocal Concessions Technique, a type of reason-based compliance
1976 - Isen et al. Study
1986 - Burger Study
Study in which desserts were sold at Santa Clara University arts fair for the Psych Club
Condition 1: 1 cupcake + 2 cookies, 75 cents
Condition 2: 1 cupcake for 75 cents, and we’ll throw in 2 cookies
Study which found the percentage of those who purchased:
Condition 1: 40%
Condition 2: 73%
1993 - Prentice and Miller Study
Study which studied the social construction of emergency situations as non-emergencies
This happens when certain behavior becomes normalized (such as inebriation, which can actually be serious)
Perpetuation of unsupported social norms
Study which found that Individuals (may actually) conform (change behavior) to their mistaken estimates of the group norm
Behavior change was more prominent in males than females
Normative social influence does not involve behavior change, which is why there is a discrepancy between these results and the tendency for women to (temporarily) conform more than men
1994 - Wegner Study
Study which discovered / coined Ideomotor Action
1996 - Bargh et. al Study
Study which found that people who are mimicked are more prosocial afterward
Study which found that mimicry may build social rapport and lead to more pleasant social interactions
2006 - Cialdini et al. Study
Study in which signs were placed in Petrified Forest National Park to stop people from taking petrified wood with them:
Sign 1: “Many past visitors have removed the petrified wood from the park, changing the state of the Petrified Forest. Please help stop this problem”
Sign 2: “The majority of past visitors have left the petrified wood in the park, preserving the natural state of the Petrified Forest”
Results: Theft was four times lower for Sign 2 than Sign 1
When trying to change norms, people often highlight how common it is for people to do the wrong thing, but this encourages people to continue doing the wrong thing
In trying to promote positive behavior, descriptive norms are beneficial
However, in trying to reduce negative behavior, descriptive norms may backfire
2007 - Schultz et al. Study
Study in which CA homeowners received messages about how much electricity they used in previous weeks and how much the average use was in their neighborhood
Study which found that people who consumed more than average started using less; people who consumed less than average started using more (unintended effect)
To counteract the unintended negative effect, the info was accompanied by a smiley or frowny face to indicate approval or disapproval
2009 - Burger Study
Replicated at 165 volts “Paper”
Examined a critical threshold in previous Milgram Experiments
150V - now-or-never moment for participants (4/5 participants who didn’t stop at this point never stopped)
Asked a battery of mental health questions
70% complied today vs 82% in 1960
Not different (statistically speaking)
1958 - 1959 - Harlow’s Monkeys Study
Study with two monkeys in a cage
Cloth Mother
Looked like a monkey, but could not give milk
Approached when threatened and needed comfort
Infant monkeys preferred warmth and comfort over food
Wire Mother
Did not look like a monkey, but could give milk
Approached when hungry
Study which suggests that the need to belong is even stronger than our need for food
Study which found that monkeys raised in either condition failed to develop properly
They became fearful, asocial, sexually dysfunctional
Even when they had the warmth and comfort, they still experienced these things because having either condition rather than both conditions at the same time is awful
1964 - Jones Study
Study which found that the easiest way to get someone to like you is to reward them, by making them feel good when they around you
1978 - Kelly & Thiabault Study
Study which discovered social exchange theory; that people tend to seek out interaction that have more rewards than costs, or have the smallest amount of “excess cost” possible
1978 - Walster et al. Study
Study which developed Equity Theory
1978 - Ainsworth Study
Simple test to assess infant attachment to a caregiver
Infant and caregiver enter an unfamiliar room with toys
Stranger walks in, caregiver leaves, infant distressed
Caregiver returns (after three minutes)
How does infant respond when caregiver returns?
1982 - Bowlby Study
Study which found that children rely on parents for security, which allows them to explore the environment and learn; moving on from having been born with few or no survival skills
1987 - Rothberg and Jones Study
Study which found that suicide and crime rates are higher for single and divorced people
1990 - Gove et al. Study
Study which found that married people fare better than unmarried in many measures of well-being
1995 - Baumeister & Leary Study
Study which found that the need to belong is universal
1996 - Uchino et al. Study
Study which found that social support strengthens cardiovascular, immune, and endocrine systems
1996 - Baldwin et al. Study
Study in which participants listed ten important relationships
Indicated their attachment style in each one
Over 50% of participants had experienced all 3 major attachment styles at one point or another
1998 - Cooper et al. Study
Study which found securely attached people are more likely to be married
1998 - Klohnen and Bera Study
Study which found that securely attached people have fewer martial problems and report the greatest satisfaction
2003 - Fraley and Spieker Study
Study which found that individuals classified as secure / anxious / avoidant in their attachment styles at age 1 are similarly classified at age 18
1950 - Westgate West Festinger et al. Study
Study in which researchers asked students who lived in student housing to list their closest friends
2/3 of the people they listed lived in the same building
41% of people living in adjacent rooms listed each other as friends; only 10% of those who lived on opposite ends of a hallway did
Residents near stairwells formed 2X as many friendships as those in the middle
Stairwells meant more interaction opportunities
1953 - Burgess & Wallin Study
Study which found that engaged couples tend to be very similar, especially when it comes to demographic variables (e.g. social class / religion) and physical characteristics (e.g. health / physical attractiveness)
Study which found that married couples tend to be more similar than chance on core personality characteristics (like extraversion or genuineness)
Study which found that interracial couples tend to be more similar in personality than same-race couples
1956, 1961 - Newcomb Study
Study in which male college students filled out a survey once a week
They rated how much they liked their housemates
As they got to know each other better, liking was predicted by similarity
1961 - Byrne “Bogus Stranger Paradigm” Study
Study in which participants read responses to personality questionnaire filled out by someone else (a “bogus stranger”)
They rated the person
Study which found that the more similar the stranger was to the participant, the more the participant liked him
1964 - Levinger Study
Study which found that if two people have complementary personality traits, they might work well together
E.g. a dependent person with a nurturer
1968 - Zajonc Study
Study in which participants were showed a list of Turkish words
Some words shown 0, 1, 2, 5, 10, or 25 times
They rated whether the word meant something good or something bad
Study in which the more times participants saw a word, the more they assumed it referred to something good, that is, the more they liked it
Study which has been replicated with many other things, such as
College yearbook photos
Chinese pictographs (2011 Reis et al. Study)
1970 - Levinger Study
Study which found that despite complementing each other’s traits, “opposites attract” is not supported; similarity in other areas like personality traits, interests / hobbies, or backgrounds is needed 9to be compatible
Thus, the belief that “opposites attract” is not supported by research
Similarity rules; complements are the exception
1971 - Cross & Cross Study
Study which found there is lots of agreement amongst cultures in terms of physical attractiveness
Study which found that (across cultures) infants at 1 year old are more likely to play with attractive adults than unattractive ones
1975 - Sigall and Ostrove Study
Study which found that it is less likely to be convicted of crimes and sentences are given lighter if convicted, up to 87% of longer sentences are applies to “unattractive people”
THAT IS CRAZY!
1976 - Bar-Tal and Saxe Study
Study which found similarly “unattractive” women (vs. men) have more negative experiences at work
1976 - Beck et al. Study
Study which found there are large differences in what people think is attractive
1977 - Snyder et al. Study
Study in which male and female participants spoke over the phone and recorded their conversation
Men were given a profile with a picture of the woman they were talking to
Half got an attractive picture, and half got an unattractive picture
Later RAs listened to and rated the recording of the women only, to the photo
Study which found that women were rated as warmer and more socially skilled if they had talked to a man who thought they were attractive
This is because if men thought the woman was attractive, they were more engaged and spoke to her more nicely, which elicited those positive qualities from her
1983 - Maret Study
Study which found that Asians, Blacks, and Whites share roughly the same opinions of which Asian, Black, and White faces are the most attractive
1985 - Ewy Study
Study which found that infants at 3 months old prefer (stare longer at) attractive vs. unattractive faces
1987 - Zajonc et al. Study
Study in which couples who were married 25+ years brought in current photos and photos from their 1st year of marriage
Study in which they cropped the photos; asked unbiased people to rate how similar they looked at Time 1 and Time 2
Study in which, after 25 years of marriage, couples looked more alike than they did as newlyweds
Study which reveals that interaction promotes similarity
This occurred because the couples
Shared experiences (both positive and negative) - happiness produces crow’s feet around the eyes; a lifetime of sadness tends to put lines around the mouth
Live in the same environment - may converge in skin tone, wrinkles
Household - similar diets, stressors, health, etc.
1989 - Martin & Bumpass Study
Study which found that half of all marriages in the US result in divorce
1990 - Fallon Study
Study which found there are large differences between cultures and subcultures, even across time; in what they find to be attractive
1991 - Frieze et al. Study
Study in which on a 1-5 point scale, a 1 point increase in attractiveness results in about $3,500 more per year on average for the same job
1991 - Aron et al. Study
Study in which married couples rated 90 trait adjectives on how accurately they described themselves and their spouse, then did a distracting task; then came back and rated on a computer how much their spouse was “like me” or “not like me”
1992 / 1999 - Gottman & Levenson Study
Study which found four behaviors that could be used to predict divorce with 93% accuracy in 15-minute interactions
Contempt - expressing disdain or scorn
Criticism - expressing negative evaluations, being overly critical
Defensiveness - trying to “play the victim” and not accepting responsibility for your part
Stonewalling - withdrawing from the conflict; ignoring and/or avoiding the issue
1995 - West & Brown Study
Study which found that, if injured, attractive women are more likely to receive help from a man
1998 - Slater et al. Study
Study which confirms the idea that people are more attractive than others if babies stare at them longer than others
2000 - Myers Study
Study which found that marriages are less satisfying today than they were 30 years ago
2000 - Aron et al. Study
Study which found that stronger romantic bonds are created when couples engage in playful teasing and nicknames; these correlate with marital satisfaction - these become harder with time (especially after children)
2000 - Gottman and Levenson Study
Study which found that the presence of negative affect predicts early divorce (0-7 years) and that the absence of positive affect predicts later divorce (7-14 years)
In other words, study which found that
A long-lasting relationship is not just about having little conflict and negative emotions; but that, even without the negative things, a lack of positive moments will not bring a long-lasting relationship either
2002 - Murry et al. Study
Study which found that stronger romantic bonds are created when partners’ look at the bright side
Study in which participants were asked to rate 21 of their partner’s virtues and faults, where happy couples idealize their partner relative to the other’s self-perceptions
Study in which, when asked to describe partner’s faults, satisfied partners engaged in two forms of idealization
Gave “yes, but” responses
Found virtue in faults
2004 - Gable et al. Study
Study which found that stronger romantic bonds are created when partners respond positively to good news in each other’s life
2008 - Glied and Neidell Study
Study which found that growing up in an area with fluoridated water (which improves the quality of teeth) is associated with a 4% average increase in woman’s annual earnings, but not men’s
2008 - Finkel and Eastwick Study
Study in which there was 2-mintue speed dating
Participants were told to rate feelings of sexual desire and chemistry
People who reported high passion for one person were reciprocated
People who reported high passion for many people were not reciprocated
This is because people can detect whether interest is targeted or promiscuous
Thus, romance / passion promotes commitment
1961 - Sherif et al. Study - Robbers Cave Experiment
Study in which 22 5th grade boys participated in a 2.5 week summer camp at Robbers Cave State Park, in which they were divided into groups of 11
Phase 1: Groups independently engaged in activities designed to foster unit (e.g. prepare meals, pitch tents)
Phase 2: 5-day tournament; winners got medals and pocket knives
Conflict
Phase 3: Researchers attempted to “reverse” prejudice + reduce conflict
Reducing Conflict
Attempt #1: Mere Exposure
The boys were brought together in noncompetitive settings
This failed… the boys insulted each other, fought, etc.
This has been replicated in many future studies
Attempt #2: Superordinate Goals
Researchers had both groups work together for a common goal
Disrupted the camp’s water supply, made supply truck “break down", etc.
This worked… prejudice went away
On the ride home, the boys took the same bus, shared candy, etc.
Study which found that despite no differences in background, appearance, or history of conflict; intergroup hostility developed anyway
In other words, all that is required for intergroup conflict is economic competition; economic competition is sufficient for intergroup bias
Study which found that competition against outgroups often increases ingroup cohesion
The intergroup conflict led the ingroups themselves to adopt group names, social norms, a created and shared social identity, etc.
Study which found that intergroup conflict can be reduced by forcing groups to work together and depend on each other
Being successful in the military requires complete cooperation
Being successful in business requires cooperation with coworkers
1972 - Levine and Campbell Study
Study which came up with the Realistic Group Conflict Theory
1976 - Duncan “Shoving Study”
Study in which white participants watched a video of two men in a heated discussion, and coded behaviors into categories
At one point, one of the individuals in the heated discussion (Black or White) shoves the other
Study which found that those who observed a White man shoving tended to code the behavior as “playing around” while those that observed a Black man doing the same thing tended to code the behavior as “aggressive behavior”
1976 - Cialdini et al. Study
Study which formulated the psychology concept of “Basking in Reflected Glory”
1977 - Gaertner & Dovidio Study
Study in which white participants were told they would be interacting with Blacks
1 person or a group (all confederates)
All were seated in individual rooms and spoke through an intercom system
Suddenly, one of the confederates indicated he was having a medical emergency; the confederate was either White or Black
How many participants left their cubicles to go help?
1 person: Most helped, whether Black or White
Group: Most help the White victim (75%), but not the Black victim (38%)
Explanation
1 person: If you do not help, you are clearly racist
Group: You can refuse to help, because there are others who will
Study which found that people are only racist relative to their relationship to the group
1978 - Tajfel et al. Study
Study which found that self-esteem can also be enhanced by negative evaluations of outgroups
People are motivated for ingroup success relate to the outgroup
e.g. “Either I am good, or you are not good”
1979 - Tajfel and Turner Study
Study which found that a person’s self-concept and self-esteem are derived from both
Personal identity and own accomplishments
Status and accomplishments of groups that they belong to
People are motivated to view their ingroup favorably because this enhances self-concept and self-esteem
1980 - Quattrone and Jones “Princeton and Rutgers Homogeneity” Study
Study which formulated the Psychology concept of “Outgroup homogeneity effect”
Study which found that people see more variability of habit and opinion in their ingroup than in their outgroup
Study in which Princeton and Rutgers students watches a videotape of another student making a simple decision, e.g. whether to “listen to rock or classical music” and the taped student was either from Princeton or Rutgers
Study in which participants were then asked what percentage of students from the same university as the student in the video would make the same choice
Study which found higher percentage estimates when viewing members of the other university
1989 - Devine et al. Study
Study which formulated the “Dual Process Theory of Prejudice”
1990 - Bodenhausen Study
Study in which participants came into the lab early in the morning or late at night
Study in which participants identified themselves as “morning people” or “night people”
Study which asked, what should happen to these different people in these different conditions?
Study in which participants read scenarios in which the main character (an athlete) belonged to different groups and was accused of engaging in undesirable behaviors (cheating) and then asked if the main character was guilty
Study in which participants at the “low point” of their circadian rhythms (“night people” in the AM and “morning people” in the PM) were more likely to rely on stereotypes when they made judgments about the main character
Study which found that “night people” who tested in the morning were more likely to say the athlete cheated
1991 - Crocker et al. Study
Study in which White and Black participants were given either positive or negative feedback
½ thought the other person could see them through a one-way mirror
½ did not think this
Study which found that the White participants’ self-esteem increased after positive feedback and decreased after negative feedback, no matter what they thought about the other person
Study which found that Black participants’ self-esteem changed only if they thought the other person could NOT see them
1995 - Steele and Aronson Study
Study which found that African-American students performed worse on a verbal test if they thought it was testing their intellectual ability
1995 - Greenwald and Banaji Study
Study which formulated the “Implicit Association Test”
1997 - Fein and Spencer Study
Study in which participants were told that they failed (self-esteem threatened) or aced (self-esteem affirmed) an intelligent test
Study in which participants watched an interview of a job applicant who was either clearly Jewish or clearly Non-Jewish
Study in which participants then rated the job applicant and reported their personal self-esteem
Study which found that participants who received negative feedback on the intelligence test denigrated the Jewish applicant and the negative ratings of the Jewish candidate thus boosted their self-esteem
1999 - Spencer, Steele, and Quinn Study
Study which found that women performed worse on a math test if they were told there was a gender difference in performance
Study which found that when the test was described as one that yields gender differences, it aroused the stereotype threat among the female participants, and their performance dipped
1999 - Sinclair and Kuda Study
Study in which participants were praised or criticized by a doctor and the doctor was either Black or White
Study in which participants then performed a lexical decision task
Participants saw strings of letters and had to decide as quickly as they could if the strings were words or not
Study which found that participants who had received positive feedback from the Black doctor were faster to recognize words related to medicine
Study which found that participants were equally fast at recognizing words related to medicine and to Black stereotypes regardless of whether they receive positive or negative feedback from the White doctor
2001 - Glick and Fiske Study
Study of 15,000 men across 19 nations that were interviewed
“Women are incompetent… so men should protect them and take care of them” (Paternalism)
“Women are more kind and warm to others… so their place is raising children, not working in the harsh business world”
Study which thus found that benevolent and hostile sexism often coexist
2001 - Payne Study
Study which found that participants more quickly identified a weapon when paired with a Black (vs. a white face), but not a neutral object
2002 - Wueller and Smith Study
Study which formulated the Psychology concept of “Subtyping,” a form of bias persistence
2007- Dardenne, Dumont, and Bollier Study
Study which found that women treated in a paternalistic fashion later performed worse on an intellectual test because of the self-doubt created
2008 - Lau, Kay, and Spencer Study
Study which found that women who deviate from typical gender norms are treated with hostility
2013 - Critcher and Ferguson Study
Study in which half the participants were told to conceal their sexual identity during a mock interview; whereas the other half of participants were able to say whatever they wanted
Study in which the act of concealment was mentally taxing and found that participants were less able to perform well on subsequent tasks
Study which thus found that disclosing one’s sexuality or gender identity has meaningful physical and psychological effects
1898 - Triplett Study
Study which recorded the fastest times when cyclists competed directly against each other on the same track at the same time
Study which found that cyclists pedaled faster when they were around other people than when they were alone
Study which discovered social facilitation, or the phenomenon that the presence of others facilitates performance
1898 - Triplett Study 2
Study in which researchers brought 40 kids into the namesake’s lab and had them turn fishing reels as fast as they could
Study in which the children turned the reels faster when they were around other kids doing the same thing
Study which found the same effect is found when the others are not doing the same task, but are simply there
Study which corresponds with the fact that, in animal species, ants dig more earth, fruit flies preen more, centipedes run faster, and dogs eat more when others around
1920 - Allport Study
Study which had Harvard and Radcliffe students refute philosophical arguments as best as they could in a five-minute period
Study which found that the students did better at this task when they worked alone than when they worked in the presence of others
1968 - Cottrell et al. Study
Study in which participants were given a list of ten nonsense words and asked to pronounce two of the words 1, 2, 5, 10, or 25 times, making some words more familiar than others
Study in which participants were then given a pseudorecognition task in which
Words flashed on a screen were too fast to recognize
They were told to identify the words, or guess if they could not
None of the presented words were actually in the study list
Study in which participants completed this task either
Alone
In the presence of two students who watched attentively (evaluative audience)
In the presence of two blindfolded “observers” (cannot evaluate performance)
Study which wanted to find out how often the participants guessed a dominant word (one that had been pronounced 25 times) and how does this rate vary across conditions
Study which found that the concern for others, not mere presence, is responsible for social facilitation
1969 - Moscovici and Zavalloni Study
Study in which French participants expressed opinions
about a) Charles deGaulle and b) Americans
First, individually
Then, as a group
The group opinion of Charles deGaulle was even more positive as a group
The group opinion of Americans was even more negative as a group
1972 - Duval and Wicklund Study
Study which formulated Self-Awareness Theory
1975 - Fenigstein et al. Study
Study which formulated the idea of individuation
1976 - Diener et al. Study
Study in which researchers recorded the behavior of 1,000 trick-or-treaters and
Noted if they were a) alone, or b) in a group
Observed that half of the children were a) asked their names (which individuated them, making them no longer anonymous), and that half of the children were b) not asked their names
On a table in the entry way, there was a bowl of candy; children were told they could take one piece of candy
Researcher “had to go do something” and left; said kids could take candy and leave
Researchers wanted to find out if trick-or-treaters would take more than their share
Study which found that individuals who were deindividuated were those that stole more than their share
1976 - Diener & Wallborn Study
Study in which participants solved a series of anagrams; and were asked to stop when they hears a bell
They were working at either
a) a typical desk
b) a desk with a mirror
Study which found that 75% of those at the typical desk kept working past the bell and that only 10% of those by the mirror kept working past the bell
1977 - Savin-Williams Study
Study which showed that leaders are socially skilled
1978 - Markus Study
Study in which participants were told to go into an adjacent room to wait for other participants to arrive
While they were in there, they had to put on “special experiment gear,” such as
Taking off shoes (well-learned task)
Put oversized socks on top of their own socks (novel tasks)
Put oversized lab shoes on (novel task)
Put oversized lab coat on (novel task)
While changing, participants were either
Alone
With another person who was watching attentively
With a repairman who was working with his back to the participant
1982 - Michaels et al. Study
Study in which researchers secretly watched pool players who were playing alone at a student union and rated as “skilled” or “unskilled”
Study in which researchers then walked up to the pool table and watched them in which
skilled players started playing better
unskilled players started playing worse
Study which thus confirms the Psychology concept of Social Facilitation
1985 - Ellyson & Dovidio Study
Study which showed that it is less likely for low-power people to speak up and more likely to inhibit their speech
1989 - Moreland & Levine Study
Study which showed that it is more likely for low-power people to restrict their body posture
1993 - Pessin Study
Study which found that the presence of others can also inhibit performance on arithmetic, memory tasks, and maze learning
1993 - Fiske Study
Study which defines power as the ability to control one’s own and others’ resources / outcomes
“Power corrupts”
“Money is the root of all evil”
Study which shows that powerful people stereotype more
1995 - Baumeister and Leary Study
Study which shows that we have a psychological need to be with others
1995 - Bargh et al. Study
Study which shows that powerful people are more likely to touch others and approach them closely
1995 - Rudman & Borgida Study
Study which found that powerful people are more likely to forwardly flirt with others
1997 - Lafrance et al. Study
Study which found that power explains gender differences in empathic accuracy
1998 - DePaulo & Friedman Study
Study which showed that powerful people violate politeness-related norms of communication and act rudely toward others