PSYCH 100B Lecture Notes - Lecture 11: Internal Validity, Line Graph, Diet Drink
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Archives: looking at existing records (e. g. diaries, newspapers, tv shows) Not observing people or interacting with them directly. E. g. looked at existing studies and observe a trend over time. Data may be biased - influenced by morals and politics of the time. Can"t draw conclusions that extend beyond that person. Genie - child who was locked in a room and deprived of language. Never learned how to speak fully later in life. Developmental psychologists can take her case and learn more about. Impossible to study every variable; even if it were possible, it would require a lot time and energy. Time: breaking up behavior into discrete time periods. E. g. divide 2 hours of observation into minutes. Arbitrary: spend 2 minutes watching for behavior 1 minute taking notes repeat. 10 types of sharing behaviors pick only one or two. Individual: focus on a particular individual for a day. Frequency: number of times a behavior occurs.
