A number of students volunteered for an experiment that required them to follow a special diet. The researchers wanted to determine the effects of a diet high in grain content on blood cholesterol levels. What is the special diet in this experiment?

a) control variable
b) dependent variable
c) extraneous variable
d) independent variable

ANS: d

Psychology

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The __________ is the personality structure that represents the storehouse of society's

values and rules. a. id b. ego c. superego d. preconscious e. non-conscious

Psychology

Five-year-old Matthew and 6-year-old Jessica like to pretend that they live or work in a zoo. Often, Matthew will pretend to be an animal and Jessica will pretend to be the zookeeper. This is an example of __________ play

A) parallel B) associative C) sociodramatic D) functional

Psychology