A Cronbach’s alpha coefficient of 0.80 implies thatGroup of answer choicesthe items of the scale have strong internal consistencythe items of the scale are unidimensionalthe items of the scale have low internal consistencyNeed to do subsequent analysis to make any inference
Question
A Cronbach’s alpha coefficient of 0.80 implies thatGroup of answer choicesthe items of the scale have strong internal consistencythe items of the scale are unidimensionalthe items of the scale have low internal consistencyNeed to do subsequent analysis to make any inference
Solution
The Cronbach’s alpha coefficient is a measure used to assess the reliability, or internal consistency, of a set of scale or test items. In the context of this question, a Cronbach’s alpha of 0.80 generally indicates that the items of the scale have strong internal consistency. This means that they are closely related as a group and likely measure the same underlying concept or construct.
However, it's important to note that a high Cronbach’s alpha (like 0.80) does not necessarily mean that the scale is unidimensional (i.e., measures only one construct). It's possible for a scale to be multidimensional and still have a high Cronbach’s alpha.
So, the correct answer to your question is: "the items of the scale have strong internal consistency".
Similar Questions
Which of the following statements is false? Group of answer choicesWhen factor analysis is used correctly, subtests will be internally consistent (highly reliable) and independent of one anotherIf a scale has a high Cronbach’s alpha, it is necessarily unidimensionalAll of the measures of internal consistency evaluate the extent to which the different items on a test measure the same ability or traitThe closer the value of ∝ to 1, the more confident we can be about the reliability of the test
A psychologist is designing a personality assessment questionnaire with 40 items. After administering the questionnaire to a sample of participants, they calculate Cronbach's alpha, which yields a result of 0.90. What does this alpha value suggest?a.The questionnaire has low reliability.b.The questionnaire has a single factor.c.The questionnaire needs more items.d.The questionnaire has high internal consistency.
A subscale on a new measure that was developed is found to have a Cronbach’s alpha of 0.92. This indicates:a.A subscale score based on the items would demonstrate adequate criterion validityb.The subscale items load onto a single factorc.The items adequately capture the content domain of the relevant constructd.The relevant items are inter-correlated
A negative Cronbach’s alpha coefficient indicates that the researchers might have forgotten to recode a few of their items in the opposite direction (reverse-scoring).Group of answer choicesFalseTrue
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