____ has had the greatest influence on our understanding of cognitive development
a. Lev Vygotsky
b. Sigmund Freud
c. B.F. Skinner
d. Jean Piaget
D
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What type of research is designed to discover causal relationships between various factors?
A. correlational B. hypothetical C. experimental D. theoretical
______ are studies that examine more than one independent variable to determine the separate and combined effects of the independent variables on the dependent variable.
A. Interaction effect B. Levels of the independent variable C. Marginal means D. Factorial designs
You are very angry with your brother who is in a fraternity in college. After speaking with him, he confessed that he has driven several times during the past few months while he was intoxicated, but insists that most of his friends do it, too
What percentage of college students report having driven intoxicated within the past year? a. 70% b. 50% c. 30% d. 10%
Suppose that the world record winning time for the half-marathon was 1 hour 10 minutes in 1900. If the world's fastest 60-year-olds ran a half-marathon race today, what would you expect the winning time would be?
a. 2 hours 20 minutes b. 2 hour 0 minutes c. 1 hour 50 minutes d. 1 hour 10 minutes