第 15 个问题A developmental psychology researcher wanted to study sharing among preschool children in her laboratory. When the children entered the lab, however, they were nervous and much more timid than they were at home or in their preschool classroom. In this case, the study’s setting1 分promotes generalizability.low population validityhas high authenticity.has low authenticity.

Dr. Malick visited a daycare center to observe sharing behaviors between 3-year-old children when a novel toy is introduced. The daycare teachers noted that the children were behaving differently than normal when Dr. Malick was conducting the observation. This would be an example of1 分low discriminant validity.a lack of face validity.reactivity effects.low interrater reliability.

A research team was interested in studying aggression in preschool children. In order to maximize construct validity, they should1 分eliminate any confounding variables.consider whether their sample of preschool children will generalize to the larger population of preschool children.ensure that their tests or procedures accurately measure aggression.randomly assign participants to the control group or experimental group.

第 13 个问题If a researcher takes care to ensure a high level of generalizability in a study, which type of validity could be limited as a result?1 分Population validityExternal validityInternal validityStatistical validity

第 24 个问题A representative sample1 分consists of one person with every important characteristic in the population.is identical in size to the population.reflects the characteristics of the population in the same proportion as in the population.represents one important characteristic of the population.

A study has high internal validity if it:1 分has at least one confounding variable.produces results that are statistically significant.is conducted with a large number of participants.is free of confounding variables.