The nurse researcher can most accurately determine sample size by ...

[MGLQZ]

The nurse researcher can most accurately determine sample size by considering what?
 
  a. The stamina of the researcher in data collection
  b. The importance of the independent variable
  c. The age of the potential subjects
  d. The design of the study

Question 2

A nurse researcher opts to use a stratified sample in a research study for which reason?
 
  a. The sample population is divided into subsets that are homogeneous for a particular trait or feature.
  b. The sample population is divided into subsets for random assignment into an intervention or a usual-care group.
  c. The sample population is randomly assigned to a specific subgroup that will vary from the others on the basis of type of treatment.
  d. The sample population is randomly assigned to a specific subgroup that will vary from the others on the basis of treatment duration.

[ebonylittles]

Answer to Question 1

ANS: D

Feedback
A Researcher stamina should have no impact on sample size selection.
B Importance of the independent variable does not mean anything unless it is measured as effect size.
C Subjects' age should not affect the size of a sample.
D A major factor determining sample size is the type of design used.

Answer to Question 2

ANS: A

Feedback
A The major characteristic of a stratified sample is that selected subjects represent population subgroups that are homogeneous.
B A stratified sample would have representation in both the treatment and control groups.
C In a stratified sample, both treatment and control groups have representative groups.
D Stratified samples are not devised on the basis of length of treatment but on proportions of subjects in the population.

[MGLQZ]

TYSM

[chereeb]

Excellent