Chapter 7

Question 1

When subjects elect not to participate in a study and/or drop out of a study, this can lead to:

Answer 1

Selection Bias

Question 2

The potential participants who meet the definition of the population and are accessible to the researcher is referred to as the:

Answer 2

Sampling frame

Question 3

The only way to be sure that a sample represents a population is if it incorporates the following two essential criteria:

Answer 3

Random selection and independence

Question 4

Selection bias may occur under all the following conditions except:

Answer 4

Numbers in the sample are adequate

Question 5

The measurement of the magnitude of the impact of an intervention is referred to as the:

Answer 5

Effect size

Question 6

What is the primary difference between ecological validity and population validity?

Answer 6

In ecological validity research findings can be generalized to other settings, while in population validity findings can be generalized to other subjects

Question 7

Sampling techniques used in Quantitative research include all except:

Answer 7

Achieving saturation

Question 8

The selection of a sample based on subjects who are accessible to the researcher is called:

Answer 8

Convenience sampling

Question 9

Methods to reduce subject attrition in research studies include all of the following except:

Answer 9

Designing complex collection methods

Question 10

The major entity or subject (do we want to clarify this is not a person?)that will be analyzed in the study is called the:

Answer 10

Unit of analysis