Reference no: EM132271237

Exercises -

Textbook - Research Methods and Statistics for Business (2011) by ROBERT N. LUSSIER, Waveland Press (Long Grove), IL. Pages 224-225: 8-9 to 8-16.

WHICH TYPE OF RELIABILITY IS NEEDED?

Note: Because tests of difference can be used rather than correlations, do not select differences/intra-class as your answer.

1. You have a long questionnaire measuring attitudes about leadership. Several of your questions focus on the same leadership traits. You want to be sure that the participants are answering the similar questions with the same attitudes. What reliability test is most appropriate for this research design?

2. You want to know if a manager gives consistent employee evaluations. Two weeks after the manager has completed employee evaluations for all 30 employees, you ask the manager to complete the same evaluation of the same employees once again. What reliability test is most appropriate for this research design?

3. You teach a course that has two sections. You teach research on Monday to one class and on Tuesday to another class. You fear that people who take the test on Monday will tell the students who take it on Tuesday what the questions are, thus giving them an unfair advantage to score higher. Which reliability technique can you adjust with-out actually testing in this situation?

4. You have developed a 60-question Language Arts test to assess grammar, diction, and punctuation skills (20 questions for each skill). Which test is most appropriate to assess the reliability of your test?

5. You have developed a test to measure people's opinions about politics. You are using Liken scales of 1-7 to measure opinions. A reviewer of your questionnaire thinks the questions are very general and recommends testing it to make sure people give the same answers if retested in a day or two. Which reliability test can you use to find out? What procedures will you follow?

6. A department of quality-control specialists all inspects the same computer product. You want to know if there is a variance in the results of their inspections. Which reliability test can you use to find out? What procedures will you follow?

7. You want to know if a 30-question ERG (existence, relatedness, growth) motivation test (with 10 questions at each level) really does measure these three levels of motivation. Which reliability test can you use to find out? What procedures will you follow?

8. You work for the registry of motor vehicles and you give the written test before the driving test. How many different versions of the written test should you have to ensure that people who have taken it can't tell others the answers? How can you test reliability of your written tests? What procedures will you follow?