magnitude) easier to predict y from x (Sat score and math class grade)
perfect correlation - ANSWER (correlational design- magnitude) x and y are the
same ( SAT and ACT score)r=1
weak correlation - ANSWER (correlational design- magnitude) x predicts y but not
, strongly. harder to predict y from x (SAT scores and college art class grade) r
closer to 0
No correlation - ANSWER (correlational design- magnitude) x and y do not
"move" together; knowing x does not help you predict y (SAT scores and what car
you drive) r=0
Correlations - ANSWER DOESN'T tell us why x causes y. Only tells us that two
variables move together. Good starting point for figuring out problems.
Experimental design (Experimental) - ANSWER one or more manipulated
variables and one or more measured variables. This allows us to conclude whether
x causes y.
Internal Validity - ANSWER within the study, were the independent variable and
independent variable alone responsible for the effect on our Dependent Variable?
Threats to internal validity - ANSWER Counfound variables: 3rd variables that can
account for our results. When something happens in one group but not the other
(other than the difference in the Independent variable)
Sources of confounds - ANSWER 1. Not using random assignment 2. Differential
treatment of participants 3. Participant expectations 4. Experimenter expectations
placebo effect - ANSWER participant's expectations about the study that can
influence their behaviour
demand characteristics - ANSWER the experimenters' expediencies regarding the
performance of the participants on a particular task create an implicit demand for
the participants to perform as expected (something about the procedure of the study
gives clues about the hypothesis)
experimenter effect - ANSWER the experimenter's expectations about the study
that can influence participant's behaviour
construct validity - ANSWER are we measuring what we think we are measuring
external validity - ANSWER do our findings replicate in the "real world" does x
-->y across situations and people
Social cognition - ANSWER how individuals construe the social world and the
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