a researcher developed a questionnaire to assess impulsiveness among adults. in a journal article, she later presented evidence that college students tend to get essentially the same score if they take the test twice, two months apart. however, when a reader looks at the sample questionnaire items she included in the article, it seems that they relate more to whether a person is sociable, outgoing, and fun than to whether an individual is impulsive. in this situation, the reader is most likely to specifically question the of the researcher's questionnaire. multiple choice reliability generalizability norm validity