Watching/observing participants:

Patient has HBP one day and then the next the HBP is normal.

Loss of subjects.

A dental researcher is attempting to put together a questionnaire that incorporates questions on common drugs used in dental practice. She asks a pharmacologist to review the questionnaire in that regard. The pharmacologist is reviewing the questionnaire for:

A quota sampling technique allows for each of the following events to occur in the sampling process except one. Choose the exception.

Which of the following terms relates to the extent to which a test measures what it is intended to measure:

In a research study, patients are randomly assigned a unique identification number. These numbers represent a(n):

Given the following scores of 10, 15, 15, 15, 15, 25, 80 it can be said of the mean, median, and the mode that:

Assuming that the overall results of a study form a bell-shaped curve, the more dispersed a set of scores is:

The t-test is an example of which type of statistics?