When Justin looked up at the night sky, he perceived the three stars that make up the belt in the constellation Orion as a single complete figure, rather than as individual stars. Justin's perception of the night sky illustrates the Gestalt principle of

Since moving into a household of jazz lovers, Joyce, a dedicated fan of rock music, has developed a more positive attitude toward jazz and added it to her types of favorite musical styles. Her roommates would be considered part of

a. her reference group. b. her membership group. c. both of these groups. d. neither of these groups.

Head Start programs have been found to increase children's IQ and achievement test scores

Indicate whether the statement is true or false