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Author Question: Bias in a sample for a quantitative study refers to: A) Lack of heterogeneity in the population ... (Read 93 times)

Themember4

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on: Jul 8, 2018
Bias in a sample for a quantitative study refers to:
 
  A) Lack of heterogeneity in the population on the attribute of interest
  B) Sample selection in nonprobability-type sampling
  C) The margin of error in the data obtained from samples
  D) Systematic over- or under-representation of an attribute vis--vis the population

Question 2

Researchers tested the effectiveness of a telemedicine program for elderly patients with congestive heart failure using a one-group pretest-posttest design. What statistical test would be appropriate for them to use?
 
  A) Independent t-test
  B) Dependent t-test
  C) Pearson's r
  D) Chi-square test


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carojassy25

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

D

Answer to Question 2

B


Themember4

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Reply 2 on: Jul 8, 2018
Great answer, keep it coming :)

mohan

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Reply 3 on: Yesterday
Gracias!

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