Health Sciences 2801A/B Chapter Notes - Chapter D: Internal Consistency, Standard Deviation, Confidence Interval
2 Dec 2017
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*note: all numbers formulas ([#]) are given on the final exam. Any non-numbered formulas that you feel you may need to use must be memorized. In theory, the individual indicators that compose an instrument can be viewed as part of a large, hypothetical set of indicators that serve to represent a construct. This large, hypothetical collection of indicators is called the item universe: for example, the satisfaction with life scale consists of five statements that respondents rate on a seven-point scale. Satisfaction with life scale are a subset of a much larger collection of hypothetical items that could serve to represent the construct of life satisfaction. A value of zero would imply that the items are completely unrelated and represent nothing other than unsystematic error. Whereas, a value of one would imply that the items are completely related and represent the construct without any unsystematic error.
