Testing threats involve _________, whereas instrumentation threats involve _________.

Which of the following phrases describes a manipulated variable?

What are the operations performed by booth multiplication algorithm for the following values of Q0 and Q-1 00 —— A 11——- B 10—— C 01—– D Write the answers for the options A,B,C,D

Which of the following is a reason that psychologists especially value meta-analyses?

Which of the following designs has elements of both a within-group design and an independent-groups design?

The following scenario will be important for answering the next three questions. Dr. Gutierrez is teaching a developmental psychology class this semester. In class one day, they got to discussing a research study on the impact of nutrition on cognitive performance in elementary school students. Michael questions the study, saying, “I don’t know. How can you get an overall measure of a child’s nutrition?” Jaden also questions the study, asking, “Which schools did they include? I am curious if they included urban, suburban, and rural school students.” Claudio also is curious about the study, asking, “I wonder how strong the relationship is between nutrition and cognitive performance. Could you predict one from the other?”

How does the story of Rip Van Winkle end?

Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital), located in the southern United States. Below are her findings.•  Life satisfaction and experience of daily stress: r = −.57 (p = .01)•  Number of friends one has and experience of daily stress: r = .09, not sig.•  Number of friends one has and life satisfaction: r = .36 (p = .04) Comparing all three correlations, Dr. Guidry will be most able to accurately predict life satisfaction from the experience of daily stress because the relationship:

Responsible journalists do which of the following as it pertains to discussing replicability?

Having an externally valid sample is more important for some research studies than others. For which of the following research questions will it be important to have an externally valid sampling technique?