Researchers wanted to evaluate whether a certain herb improved memory in elderly adults as measured by objective tests. To do this, they recruited 90 men and 127 women older than 70 years and in good health. Participants were randomly assigned to receive the herb, 45 mg 3 times a day, or a matching placebo. A measure of memory improvement was determined by a standardized test of learning and memory. What type of experimental design is this?What is the population being designed? What is the response variable in this study?What is the factor? What are the treatments? Which of the following is correct?

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

Awoman who was socialized from infancy to become a wife and mother settles comfortably into being a homemaker in her twenties and early thirties. however, her husband dies suddenly, and she finds that she must enter the paid labor force in order to support herself and her two children. this woman will most likely have to undergo a process of (1pts) question 19 - a woman who was socialized from infancy to become a wife and mother settles comfortably into being a homemaker in her twenties and early thirties. however, her husband dies suddenly, and she finds that she must enter the paid labor force in order to support herself and her two children. this woman will most likely have to undergo a process of select anticipatory socialization. as your answer anticipatory socialization. select socialization. as your answer socialization. select reverse socialization. as your answer reverse socialization. select resocialization. as your answer resocialization.

How did the mountains on the oregon trail influence the timing of pioneers’ travels? a.) the pioneers wanted to avoid times when there was snow in the mountains. the pioneers wanted to spend as much time as possible enjoying the mountain scenery. b.) the pioneers crossed the mountains in late fall when the trees were bare and the views were good. c.) the pioneers were rugged people who were not impacted by the terrain they crossed at any time.