PNB 3RM3 Lecture Notes - Lecture 16: Content Analysis, Internal Validity, Random Assignment
6 Oct 2020
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Research methods that do not meet the three criterias of an experiment (don"t do these. Manipulation of an iv: holding extraneous variables constant. Single-variable research: ex: milgram"s shock study, no comparison to anything, just measuring one thing. Doesn"t require two quantitative values (one of them can be categorical) cannot manipulate your iv"s here: because you can"t do this, you cannot make any causal relationships. Naturalistic observation: observing how people naturally do various different tasks, coding. Archival data: using data that has already been collected for another purpose, ex: data from records, consesus", etc, you use this data to do content analysis", ex: looking at frequency of terms". People"s pre-assignment to the group means a lot of the confounds that make them eligible for the group come with them: problem: you are not eliminating extraneous variables here. Nonequivalent groups design: analogous to a between subjects experimental assign but lacks random assignment.
