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 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

You are a seasoned researcher leading a team to develop a comprehensive employee satisfaction survey for a multinational corporation. After conducting an item analysis to assess the reliability of the tested construct, you obtain a Cronbach’s Alpha value of 0.7. In this scenario, what interpretation can be made based on the above findings? Group of answer choicesThe reliability of the construct is considered unacceptableThe reliability of the construct is considered excellentThe reliability of the construct is considered acceptableThe reliability of the construct is considered poor

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 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.

Which of the following most align with being sources of measurement error?Group of answer choicesMistakes made by the test developerExternal factors that influence how the test-takers responds to the testMistakes made in analysing the datab and c