PSY 302 Lecture Notes - Lecture 2: External Validity, Pacifier, Dependent And Independent Variables
11 Apr 2016
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Formulate a hypothesis (statement predicing outcomes of iv on dv) Gather data to test the hypothesis: reliability: consistency. Inter-rater: the amount of agreement in the observaions of diferent witnesses. Test-retesing: brings similar results again: validity: you are actually tesing what you are looking for. Internal validity: degree of which efects observed can be atributed to the. External validity: the degree to which results can be generalized beyond the paricular research. Structured (everyone is asked the same set of answers in the same order) Clinical (everyone is asked the same irst quesion and then based on their response the conversaions will change: quesionnaires. Observaion: naturalisic observe without interfering (e. g. , home, school, structured observaions set up a situaion and observe the behavioral outcome (e. g. , lab) Ex: whether the children cross over the line and go down a step depends on the mothers facial expression (when she looks scared baby backs away from the ledge, when she smiled he coninues toward the edge)
