One significant limitation of the cross-sectional design is called the "cohort effect." This relates to the fact that
A. experience is confounded with participation in the study.
B. age and experience are confounded.
C. genetics and experience are confounded.
D. reliable statistics cannot be computed for cohort groups.
Answer: B
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How did Piaget test a child's concept of object permanence?
a. He asked children to describe toys that were out of sight b. He watched whether a child would reach around a barrier to get a toy. c. He changed the shape of an object and asked whether it still weighed the same. d. He measured children's heart rate as they watched magic tricks.
Brandon is a 17-year-old Latino male. He has not given much thought to identity issues. Rather, he identifies with the values and practices of his family. According to the three stages of ethnic identity, this is called
a. moratorium. b. unexamined ethnic identity. c. ethnic identity search. d. achieved ethnic identity.
A researcher who studies a fixed group of people over a long period of time is, by definition, using the __________ method
a. longitudinal b. correlational c. cross-sectional d. biographical study
Most preschoolers understand the persuasive intent of television commercials and know that commercials are not always truthful
Indicate whether the statement is true or false