Using Likert-type scale items,Professor Wong developed an index to assess job morale.Wong administered the index to 2,000 workers and found that a few of the responses were missing.Which of the following strategies would be BEST for Wong to use?
A)exclude the cases that contained the missing data from the analysis.
B)assign the middle value to cases with missing data.
C)analyze the cases that had missing data to interpret their meaning.
D)assign values at random.
E)give up and start over again.

Question

Quizplus · Accepted Answer

Excluding cases with missing data is the best strategy in this case as it ensures that the analysis is based only on complete data, thus avoiding bias and potential errors. Assigning a middle value or assigning values at random may distort the results and compromise the validity of the index. Analyzing cases with missing data separately may also introduce bias and may not be practical with a large sample size like this. Giving up and starting over again is not necessary as excluding cases with missing data is a commonly accepted practice in statistical analysis.

Using Likert-Type Scale Items,Professor Wong Developed an Index to Assess