Someone doing a survey in Florida interviews every 1,000th person on the census list. This procedure approximates which type of sample?

Research discussed in the textbook indicates that the statement "children prefer gender-typed toys only after they have become aware of the gender roles assigned to them by society" is

a. true. b. false. c. true, but only for boys. d. true, but only for girls.

For an experiment comparing two methods of teaching social skills training to autistic children, the independent variable is _______ and the dependent variable is _______

a. teaching methods; the autistic children b. the autistic children; the social skills that are learned c. the social skills that are learned; the autistic children d. teaching methods; the social skills that are learned