The director of a major hospital complex conducts a study to discover the types of critical incidents that have occurred in this hospital and its sister hospital over the past five years
She makes a list of every critical incident that has occurred over this period. Choose the true statements about this list. (Select all that apply.)
a. The list is the dependent variable.
b. The list represents the hospital director's assumptions.
c. The list is an extraneous variable.
d. The list represents the sample.
e. If the two hospitals have been in operation only five years, the list represents the population.
ANS: A
The population is all the elements (individuals, objects, or substances) that meet certain criteria for inclusion in a given universe. The researcher must determine which population is accessible and can be best represented by the study sample. A sample is a subset of the population that is selected for a particular study. Being a subset, the sample is either smaller than the population or, very occasionally, equal in size to it; it cannot be larger.
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