PSYB01H3 Chapter Notes - Chapter 5: Contingency Table, Caller Id, Statistical Significance
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Selecting research participants: studying entire population, census, studying sample of the population, sample. Define the population: cannot generalize findings from one population to another population, e. g. from china to canada, therefore must define population. Simple random sampling: generates numbers based on chance, the probability of selection in a true simple random sample is equal for each element. Combining questions in indexes and scales: single questions are prone to error due to idiosyncratic variation, occurs when individuals" responses vary because of their reactions to particular words or ideas in the questions. Index: the sum or average of responses to a set of questions about a concept. Idea is that the idiosyncratic variation in response to particular questions will average out a. Index will provide a more complete measure of the concept than any one of the component questions. Designing questionnaires: survey questions answered as a part of a questionnaire, questionnaire, the survey instrument containing the questions in a self administered survey.
