Chapter 15 True/False Quiz

. Some data-processing activities can be programmed into computer-assisted interviewing.

. In coding open-ended questions, it is generally better to create relatively few than too many categories.

. Like other sources of survey error, data-processing errors are unavoidable.

. The codebook for a survey looks like an interview schedule with additional response and nonresponse codes.

. Univariate analysis can determine whether to recode or collapse variable categories for further analysis.

. A frequency or percentage polygon reveals the shape of a univariate distribution.

. The rule for percentaging contingency tables is to compute percentages in the direction of the dependent variable.

. The direction of a relationship is a property of nominal-scale variables.

. Examining a scatterplot can reveal whether a linear regression analysis is appropriate.

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In the regression equation Y = a + bX, a is the regression coefficient or slope.

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