Question: Approximately 21,000 school psychologists are members of the U.S.-based National Association of School Psychologists. Of these, about 5000 have doctoral degrees. A researcher wants to randomly select 100 of the doctoral-level school psychologists for a survey study regarding aspects of their jobs, including the types of tasks in which they engage, settings in which they work, and attitudes about their careers. Use this excerpt from a random numbers table to answer the following questions:
a. What is the population targeted by this study? How large is it?
b. What is the sample desired by this researcher? How large is it?
c. Describe how the researcher would select his sample. Be sure to explain how the members of the population would be numbered and what sets of digits the researcher should ignore when using the random numbers table.
d. Beginning at the left-hand side of the top line and continuing with each succeeding line, list the first 10 participants that this researcher would select for his study.