Frederick Is Studying Employees in a Large Firm to Assess

Multiple Choice

Frederick is studying employees in a large firm to assess whether length of employment with that firm differs between professional employees and service employees.Further,he tests the possibility that occupation type might affect employment duration indirectly through job commitment.He uses an existing survey that asks the respondents their job title,their length of time with the firm,and one item that asks,"Overall,how committed are you to this job?" The problem of incorrectly measured differences would occur if

A) job commitment varies between occupational groups depending on the dimension.
B) all employees have a low likelihood of answering that they have low job commitment.
C) job commitment actually predicts whether someone is in a professional or service job.
D) professional and service employees have equal job commitment on average.