1. Chapter 6 Indexes, Scales, And Typologies Key Terms

2. Index Constructed by accumulating scores assigned to individual attributes. Scale Constructed by assigning scores to patterns of responses, recognizing that some items reflect a weak degree of the variable while others reflect something stronger.

3. Item analysis Examine the extent to which the composite index is related to or predicts responses to the individual items it comprises. External validation Testing the validity of a measure by examining its relationship to other, presumed indicators of the same variable.

4. Bogardus social distance scale Measurement technique for determining the willingness of people to participate in social relations with other people. Thurstone scales A type of composite measure, constructed in accord with the weights assigned by “judges” to various indicators of some variables.

5. Likert Scale Calculates the average index score for those agreeing with each of the individual statements. Semantic Differential Ask respondents to choose between two opposite positions.

6. Guttman Scale Based on the fact that some items under consideration may prove to be more extreme indicators of the variable than others. Typology A set of categories or types.