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Inductive approach
starts with an observation and generates an abstract theory or explanation from a social phenomenon (specific —> general)
When did experiments begin in the social sciences?
Late 1800’s
Hawthorne Effect
Researchers concluded that workers modified their behavior simply because they were aware of being watched, studied, and given special attention
Hawthorne Experiments
ran between 1924 to 1932 at the Hawthorne Plant in Ciscero, Il. Fundamentally influenced management theories
Three main experiments
Illumination studies (1924-1927): tested whether better or worse lighting changed worker out put
Work structure experiments (1927-132): relay assembled studies, bank wiring observations, women’s workers interviews
deductive approach
start with abstract theory for social phenomena, then test an empirical hypothesis derived from that theory (general —> specific)
what is a theory?
a general argument of how things work
most theories are what?
testable/falsifiable, generalizable, probabilistic
Hypothesis
a hypothesis is a logical, testable claim about the expected relationship between two concepts or variables
variable
a variable is anything that takes on different values, something that can be measured
independent variable (IV)
the hypothesized cause of variation in a dependent variable (the cause)
dependent variable
the hypothesized effect of variation in an independent variable (the outcome)
casual relationship
a change in one thing leads to some change in another
spuriousness
when two variables appear related but tare actually the result of a third variable
confounding variable
a third variable that makes two concepts appear linked even when they are not
factorial designs
involve the manipulation of multiple independent variables at the same time
What are conditions in an experiment?
Conditions reflect different levels of the independent variable, or different treatments
concept
an abstract idea that can be named, defined, and measured in some way
conceptualization
precisely defining abstract terms and concepts and turning them into specific variables
operationalization
identifying how a variable or concept will be manipulated or measured
Doob and Gross (1968)
question: how does status of a person impact how others respond to their frustrating behavior?
Hypothesis: people will act more aggressively in response to their frustrating behaviors of low - vs- high status other
Independent variable: (vehicle) status, high status vehicle vs low status vehicle
Dependent variable: honking
Findings: 84% honked at low status, 50% at high status car, men honked more often
Cornell et al. (2007)
example of 2 × 2 factorial design
Manipulates both gender and parental status of fake job applicants
Willer et al. (2013)
looked at the relationship between masculinity threat and testosterone levels on support for President Bush
Foundation that men with naturally high basal testosterone levels felt more masculinity threat and had more support for President Bush
random assignment
helps to eliminate or reduce the possible impact of potential confounding variable
law of large numers
potential confounds will begin to balance out between groups as the size of the groups increase
between-subjects design
participants are randomly exposed to only one study condition
within-subjects design
participants are exposed to more than one of the study conditions
Strengths of between-subjects
reduced risk of carry-over and demand effects
offers a more conservative test of hypothesis
weaknesses of between-subjects
requires larger sample size
may reduce external validity
strengths of within-subjects
more economical because participants provide data on all measures
may provide better external validity
weaknesses of within-subjects
higher risk of carry-over and demand effects
mediating varibale
a variable that explains why or how an IV causes a change in a DV
moderating varible
a variable that explains for whom or under what conditions an IV and DV
validity
how “accurate” a study is
three types of validity
internal, external, construct
Internal validity
eliminates or reduced the impact of compound variables, less question in the IV causing change in the DV
external validity
how generalizable are the results of the study
representativeness
how representative of the population is the sample being studied?
realness
to what extent does the study reflect the “real” world"?
mundane realism
how similar are the participants and study situations are to those the researcher wants to generalize to
construct validity
have concepts been operationalized in ways that will capture them accurately?
face validity
subjective assessment of whether a manipulation or measurement appears to capture a concept
reliability
how consistent is your measurement of manipulation
lab experiments strengths
Maximum control over environment and measurements
Standardized procedures increase potential for replication and reliability
Can create more elaborate procedures to test more abstract theories and complex process
Can collect certain types of measures not possible or difficult in other design (e.g., biomarkers, behavior)
lab experiments weaknesses
Samples are often less representative and smaller
Artificial environment does not necessarily reflect the “real” world
may elicit stronger demand effects
survey experiments
an experiment embedded in a survey
Lab experiments
Most heavily controlled form of experimental design
Often use non-random samples
May involve the use of confederates
survey strengths
Larger and more diverse samples that may be more representative of the population of interest
Can manipulate a significant number of independent variables (e.g., conjoint)
Asch conformity experiments
Method: confederates and one participant, had to choose which line matched the one presented
Had confederates say the wrong one to see if participants conformed or not
findings : roughly one-third of participants conformed to the groups response, presence of a “true partner” decreased conformity
Pager (2003)
research question: how does a criminal record impact callback rates for black and white job seekers?
Had three hypotheses: criminal record will/will not significantly decrease callback rates for Black applicants/ will equally decrease callback rates for Black and White applicants
Independent variable (s): criminal record and race
Dependent variable: percent of applicants that received callbacks from employers
Presented both white applicants (one with a criminal record and one without) in one group and did the same for the Black applicants
Findings: having a criminal record negatively affected callback rates for Black and White applicants, even with a criminal record White applicants still received more callbacks than Black applicants with criminal records
survey weaknesses
Less control over participants environment
The salience and effect of a manipulation may be weaker
Often rely on self-report measure, which might not capture actual behaviors
field experiments
an experiment that takes place in the “real” world of a natural environment
What type of experiment was the Asch conformity experiements?
Lab experiment
What type of experiment was Pedulla and Thebaud’s Work Family Ideals?
Survey experiment
Work family ideals
Pedulla and Thebaud (2015)
Used a between subjects design with three conditions (high constraint, medium constraint, low constraint)
Used relationship options on survey as manipulation, showing different ones based on condition
Found that men and women preferred egalitarian structure when available, presence of supportive policies sig. increased % of women who chose egalitarian but not men
audit atudies
a type of field study that is used to asses levels of discrimination in hiring, housing, admissions, etc
field experiments strengths
Increased confidence in the generalizability of the findings
Good at testing more applied questions or testing success of interventions, not as much for testing abstract theories
Potentially lower risk of demand effects, especially when using double-blind design
field experiments weaknesses
Less control over environment = higher risk of confounding variable impacting results
It may be challenging to ensure to consistent exposure to the treatment
Samples are not always random
Can be challenging to replicate
Additional ethical considerations to account for (e.g. access to medicine)
attribution theory
explains how people interpret the causes of behavior and events, distinguishing between internal (dispositional) and external (situational) factors
genetic essentialism
is the belief that genetic factors are the primary determinants of human behavior, identity, and social characteristics, often leading to misconceptions about the nature of these traits
Direct treatments
The manipulation or intervention is what it appears to be the participant, participant is likely aware of what they are being “exposed” to
Indirect treatments
The manipulation or intervention is not clear or apparent to participants. Purpose is to ‘prime’ something through a task that seems unrelated to the DV
Phelan (2003)
research question: if a stigmatized character is attributed to genetic factors (as would occur increasingly with increased geneticization), how are peoples reactions affected?
Hypotheses: 1. Attribution Theory: geneticization of a condition will results in lower levels of stigma. Stigma operationalized through blame, anger, punishment (negative), sympathy, helping (positive). 2. Genetic Essentialism: geneticization of a condition will result in higher levels of stigma. Stigma operationalized through beliefs, perceived differences, persistence, dangerousness, risk to family members; behavioral consequences:social distance, reproductive restriction.
Phelan claims it’s possible for both these theories to be correct