Chapter 3 Quiz

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Chapter 3 Quiz  Which of the following can NOT be performed on data collected at the ratio level of measurement? o All of the above can be performed on ratio level data.  Even though there may be a practical order, for statistical purposes dichotomies can be treated as: o Nominal  A measure covers the full range of a concept’s meaning. o Content validity  A measure obviously pertains to the meaning of the concept being measured more than to other concepts. o Face validity  A measure is validated by being closely related to a criterion conducted at the same time. o Concurrent validity  A measure is validated by predicting scores on a criterion measured in the future. o Predictive validity  The results of one measure match those obtained with a more direct or an already validated measure of the same phenomena. o Criterion validity

 A measure is validated by relating to other measures specified by a theory. o Construct validity  To reduce idiosyncratic variation in responses to individual questions, social work researchers use: o Scales  Which level of measurement is the most mathematically precise? o Ratio  Using records from the General Social Survey is an example of which of the following procedures: o Using available data  Reliability refers to which of the following? o That a measure yields consistent scores.  When A. Thomas McLellan and his associate (1985) compared subject scores on the Addiction Severity Index to a number of indicators from prior research that they felt would be related to substance abuse, they were hoping to establish which of the following: o Construct validity  T or F: Unlike other levels of measurement, nominal levels of measurement need not be exhaustive and mutually exclusive. o False  T or F: For most statistical analyses in social work research, the interval and ratio levels of measurement can be treated as equivalent.

o True  T or F: Triangulation weakens measurement considerably because we can achieve similar results with different measures of the same variable. o False  T or F: An instrument may be reliable but invalid. o True  Comparison of subjects answers to slightly different versions of survey questions. o Alternate Forms Reliability  Testing unchanging phenomenon at two different times. o Test-Retest Reliability  The association of answers to a set of questions designed to measure the same concept. o Interitem Reliability  Correspondence between measures made by different observers. o Inter-Observer Reliability  T or F: Reliability is a prerequisite for measurement validity. o True  The process of specifying what we mean by a term. o Conceptualization  The procedure for identifying or indicating the value of cases on variable.

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o Operation  A mental image that summarizes a set of similar observations. o Concept  The process of linking abstract concepts to empirical indicants. o Measurement  The process of specifying the operations that will indicate the value of cases on a variable. o Operationalization

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