PSYC 201W Lecture Notes - Lecture 9: Survey Data Collection, Longitudinal Study, Construct Validity
8 Nov 2016
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Enter & clean the data - locate & eliminate errors where possible. Interpret & report the results: cross-sectional vs. longitudinal designs, cross-sectional: collecting data in a single, brief time period, typically from multiple groups in survey research. Asked of different samples over time: survey data collection methods, interview : verbal self report data collected from interviewees by an interviewer, types: Face to face or personal: advantages - ability to clear up ambiguities & higher completion rate, disadvantages - expense & participants may be uncomfortable discussing private issues. Telephone interview: less expensive than face to face & comparable data, can utilize random digit dialing for random samples. 2. questionnaire: self-report data collection instrument filled out by research participants. Mail questionnaires: advantage - low cost, disadvantage - low return rate, typically by 20-30% Group-administered questionnaire: advantage - quick & efficient, disadvantage - cannot be used if participants are spread out across locations.
