A) no items are used until they have passed the test of construct validity.
B) extreme positions on the variable are left off so that regression toward the mean is avoided.
C) the scale achieves multi dimensionality.
D) the items cover the actual range of variation on the variable.
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Multiple Choice
A) existing scales usually achieve a higher level of measurement.
B) existing scales are more likely to be unidimensional.
C) existing scales are more likely to confirm research hypotheses.
D) the validity and reliability of existing scales have usually already been established.
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Multiple Choice
A) Guttman scale.
B) multidimensional scale.
C) summated rating scale.
D) rapid assessment instrument.
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Essay
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Essay
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Multiple Choice
A) indicates the degree to which people's responses to an item range over the five response alternatives.
B) is a method of assessing the reliability of each item.
C) indicates the degree to which each item discriminates between high scorers and low scorers on the overall scale.
D) indicates how highly that item correlates with people's overall scale score.
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Multiple Choice
A) it is one of the quickest scales to administer.
B) the data are considered to be ordinal level, permitting the use of more powerful statistical procedures.
C) the data are considered to be interval level, permitting the use of the most powerful statistical procedures.
D) the single score based on the Likert scale is not a summary of responses to numerous items.
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Multiple Choice
A) the whole preliminary Likert scale.
B) every item of the preliminary Likert scale.
C) only on those items that are used in the final Likert scale.
D) those items that are being moved from a Thurstone to a Likert scale.
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Multiple Choice
A) high scorers on the overall scale scored lower on this item than did the low scorers on the overall scale.
B) people in the upper and lower quartiles scored very differently on this item.
C) there is a negative relationship between how people score on this item and on the overall scale.
D) the item is a good candidate for inclusion in the final scale.
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Multiple Choice
A) SDs provide interval level data.
B) SDs provide nominal level data.
C) adequate reliability and validity can be achieved with a smaller number of items.
D) the items in an SD are easier to interpret in terms of operational definitions and measurement.
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