Question

Question 1

1. Which of the following best defines validity?

   		The accuracy of the independent variable
   		The ethical accuracy of the study design
   		The truth or accuracy of the study results
   		The truth or accuracy of the study participants

Question 2

1. What is the overall purpose of the research design in a quantitative research study?

   		To provide the plan for answering the research question
   		To assist the researcher in identifying gaps in the knowledge base
   		To determine the sample size
   		To identify the problem statement

Question 3

1. Compared with a quasi-experimental design, which of these characteristics should a nurse expect to see only in a true experimental design?

   		Random assignment
   		Informed consent
   		Experimental treatment
   		Hypotheses

Question 4

1. For which of these reasons would a nurse researcher choose to assign subjects randomly to groups in a study?

   		To help ensure that current events do not influence the outcomes of the study
   		To help ensure that all groups within a study are representative of the larger population
   		To eliminate the need for establishing specific study criteria and subject eligibility
   		To increase the chance that the study groups will be different from each other with regard to extraneous variables

Answer 1

Answer 1. Validity can be defined as:-

C) the truth or accuracy of study results.

Answer 2. The overall purpose of the research design in a quantitative research study is:-

A) to provide the plan for answering the research question.

Answer 3. Compared with a quasi-experimental design, the characteristics a nurse expect to see only in a true experimental design :-

A) Random assignment.

Answer 4. A nurse researcher choose to assign subjects randomly to groups in a study, because:-

A) to help ensure that current events do not influence the outcomes of the study.