VERSION 1 COMPLETE 100 QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /A+ STUDY MATERIAL
sources of bias - ANSWER-- observer effects
- observer bias
- demand characteristics
demand characteristics - ANSWER-some aspect of the situation where participants
guess what the experiment is focusing on and it changes the way they answer
single blind design - ANSWER-observers are unaware of the hypothesis
double blind design - ANSWER-observer and participants are unaware of the
hypothesis
history threat - ANSWER-participants answer to the independent variable is
altered by an event other than the independent variable
maturation threat - ANSWER-a change in behavior that emerges more or less
spontaneously over time
instrument threat - ANSWER-a measure changes over the course of an experiment
regression threat - ANSWER-extreme scores return to average during an
experiment
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, testing threat - ANSWER-participants change because of interactions with a
measure
how to prevent history, maturation, regression threats - ANSWER-add a
comparison group
how to prevent attrition threat - ANSWER-run a statistical test on the pretest
attrition threat - ANSWER-participants leave in a systematic way
how to prevent avoid a testing threat - ANSWER-avoid a pretest
how to prevent an instrument threat - ANSWER-- counterbalance the pretest and
post-tests (give version A pretest and then B post-test, and vice versa)
- switch to a post-test only design
observer bias - ANSWER-occurs when researchers' expectations influence their
interpretation of the results
how to prevent observer bias and demand characteristics - ANSWER-use a double
blind study
how to rule out placebo effects? - ANSWER-use a special kind of comparison
group using a double blind placebo control study
what is this an example of: If pasta served in a large bowl appeared more
appetizing than pasta served in a
medium bowl. - ANSWER-design confound
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