PSYC 202 Lecture Notes - Lecture 1: Sampling Frame, Experiment, External Validity
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Research hypotheses (and evidence required to support each) Name: _____________________________________________________ lab section/day: ________ points out of 35: _________ Needs to demonstrate technique that can be reliably recorded and score: associative reliable statistical relationship between 2 variables, a. Which participants do what when: causal research hypothesis. External validity (components and type of variables involved) 1. population ( who : complete population vs. purposive, setting ( where , researcher selected vs. Invited group/selected & simple vs stratified: volunteerism & attrition. 3: task/stimulus ( what , participant selection. Internal validity (components and type of variables involved) 1. randomly assigned: randomly assigned of intact groups. Role of each measure/behavior: constant -- all the participants in the study have the same value, variable -- when at least some of the participants in the study.
