SOCI 211 Lecture 6: Lecture 6 - Scales and Sampling
24 Jan 2019
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Document Summary
Guttman scale procedure is to see if it agrees to what the scale is measuring and if it actually is a scale. Someone might say yes to each of the questions. With the mixed types one possibility is to throw them out or retain the cases and assign scores on one basis or another. This is error minimization (way to assign scores) Deals with a variety of statistical issues. In order to minimize errors you have to check which score when is assigned produces the smaller number of errors. Calculate the number of errors produced by the scale score you might assign (1 - (# of errors / # of guesses)) x 100. # of errors is the # of misclassifications from mixed types. # of guesses is the # of cases x # of questions. There are two kinds of sampling: non-probability and probability sampling. Psychology department uses people for their studies (students because they"re convenient and cheap)
