PSYC 217 Chapter Notes - Chapter 7: Longitudinal Study, Likert Scale, Response Bias
Document Summary
Survey research: questionnaires/interviews that measure aspects of human thought & behavior, e. g. personality, preferences, mood, demographics. Longitudinal study (i. e. panel study: when the same people are tracked & surveyed at 2+ points in time, two-wave: surveyed at 2 points in time, three-wave: surveyed at 3 points in time. Problems with longitudinal studies: societal or institutional changes, participants can drop out of the study, sample that starts out random can become biased bc of non-random differences in the people who remain vs those that leave study. Types of questions: open-ended: answering whichever way you like (difficult to analyze, closed-ended: constrained way of answering. Rating scales: asks about the degree of judgments. In person: pro: cheap, can clarify, mail, con: low response rate, distractibility. Population: set of people of interest to the researcher. Sampling: use info from sample to estimate characteristics of the population as a whole.
