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Author Question: A nurse researcher would hesitate to use nonprobability sampling because: a. It will result in ... (Read 17 times)

mpobi80

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on: Jul 8, 2018
A nurse researcher would hesitate to use nonprobability sampling because:
 
  a. It will result in reduced or limited generalizability.
  b. Informed consent must be obtained.
  c. It will require large, unmanageable sample sizes.
  d. Sample sizes are too small for most methods of statistical analysis.

Question 2

A nurse researcher should attempt to clearly specify exclusion criteria for a study sample because such criteria will do what?
 
  a. Limit the time needed to complete the study
  b. Reduce the effect of extraneous variables on the accurate evaluation of the outcome variable
  c. Eliminate the outside influences and inferences regarding the effectiveness of a behavioral intervention
  d. Ensure that an adequate sample size is accrued to meet assumptions for accurate statistical analysis


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otokexnaru

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Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: A

Feedback
A Nonprobability sampling reduces or limits generalizability.
B Informed consent is used for all studies despite choice of sample used.
C Nonprobability sampling does not mandate large unmanageable sample sizes.
D Nonprobability sampling does not mandate a small sample size.

Answer to Question 2

ANS: B

Feedback
A Exclusion criteria do not directly affect how long a study takes.
B Exclusion criteria are designed to control sample characteristics and thereby reduce the potential effect of extraneous variables on the outcome variable.
C Exclusion criteria delimit the sample but do not fully act as controls for the intervention.
D Sample size is not determined by exclusion criteria.


mpobi80

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Reply 2 on: Jul 8, 2018
Gracias!

laurnthompson

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Reply 3 on: Yesterday
Wow, this really help

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