Dream Length Perception and Toy Preference in Monkeys

Flashcards based on the lecture notes regarding dream perception and sex differences in toy preference in monkeys.

What was the aim of Hassett et al.'s study on toy preference?

To investigate whether sex differences in toy preference observed in humans also appear in monkeys, suggesting a biological influence.

What was the independent variable (IV) in Hassett et al.’s study?

Type of toy (masculine, feminine, neutral).

What was the dependent variable (DV) in Hassett et al.’s study?

Time spent interacting with each toy.

What method was employed in Hassett et al.’s study?

Quasi-experiment (natural experiment) with an independent measures design.

What was the sample size used in Hassett et al.'s study?

34 rhesus monkeys (male and female) using opportunity sampling from a primate center.

How did the male monkeys behave towards masculine toys in Hassett et al.’s study?

Male monkeys preferred masculine toys more than feminine ones.

What were the strengths of Hassett et al.'s study?

Controlled observation with clear operational definitions and a biological explanation for gender differences.

What were the weaknesses of Hassett et al.'s study?

Ethical concerns with animal research, debatable generalizability to humans, and limited control over past experiences of monkeys.

What did female monkeys show in terms of toy preference in Hassett et al.'s study?

Female monkeys played with both masculine and feminine toys, showing a broader range of interest.

How did the results of Hassett et al.'s study compare to human toy preference?

These results mirrored human sex differences in toy preference.