Experimenter expectancy effects occur when the researcher:

a. knows the experimental hypothesis that is being tested
b. uses a double-blind experimental design
c. fails to use random assignment in an experiment
d. unknowingly influences the results of a study in subtle ways

D

Psychology

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Which of the following drugs poses the greatest risk for early delivery of a premature baby?

a. penicillin b. marijuana c. cocaine d. high blood pressure medication

Psychology

According to social psychologists, which of the following is defined as affection without passion or deep commitment and also lacks the quality of mutual absorption?

a. romantic love b. liking c. familiarity d. reciprocity

Psychology