A researcher seeks to understand what kind of people engage in drug use. Which approach is the researcher most likely to adopt?

Which of the following is true of generalizability?

Dr. Metropolis has developed an objective measure to determine whether participants are more “city people” or “rural people.” To do this, he generated a list of items that seemed like they’d capture the construct of interest. After collecting data from 100 participants, he factor-analyzed the data to see (1) which items grouped together, and (2) if the items that grouped together shared an interpretable common theme. What methods of objective test construction did Dr. Metropolis use?

People who adjust their behavior to best fit the situation are called ________, and people whose behavior is guided by their personality are called ________.

The immunological consequence of severe combined immunodeficiency disease (SCID) caused by a genetic defect in either RAG-1 or RAG-2 genes is:

A genetic defect in the λ5 gene would cause which of the following consequences? (select all that apply)

Which of the following statements regarding T-cell receptor recognition of antigen is correct?

What is the fate of an immature B cell that encounters and has specificity for self antigen?

In terms of V, D, and J segment arrangement, the T-cell receptor α-chain locus resembles the immunoglobulin locus, whereas the T-cell receptor β-chain locus resembles the immunoglobulin locus.

In the scientific method, what precedes the formation of the hypothesis?