Dr. Caster decides to perform an experiment investigating the effects of caffeine and sugar on motor skill performance. He randomly assigns his subjects to one of four groups: high caffeine/high sugar, high caffeine/no sugar, no caffeine/high sugar, no caffeine/no sugar. People in each group are given a soft drink containing the appropriate levels of sugar and caffeine, and then tested on a

mirror tracing task. Dr. Caster finds that the people in two of the groups (the high caffeine/high sugar and the no caffeine/no sugar) perform at about the same high level, while the other two groups (the no caffeine/high sugar and high caffeine/no sugar) perform at about the same poor level. Dr. Caster's results show

a. a main effect of caffeine
b. a main effect of sugar
c. a synergistic interaction
d. an antagonistic interaction


d

Psychology

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Classification refers to which of the following?

a. Method by which children are assigned to a particular disorder. b. System of describing particular disorders. c. Method by which researchers can classify children. d. System of quantifying particular disorders.

Psychology

Participants taking on the negativistic subject role ____

a. are concerned that their performance in the study will be used to evaluate them b. try to act in a manner such that their data are in contrast to the hypothesis c. try to act in a manner such that their data are consistent with the hypothesis d. try to avoid acting on the basis of their suspicions

Psychology

Research indicates that a boy develops stronger identification with his father when his father . . .

a. Is nurturant and warm b. Is punitive or threatening c. Leaves the discipline to the boy’s mother d. None of the above

Psychology

Remembering to do things in the future is called _____ memory.

A) prospective B) semantic C) anterograde D) source

Psychology