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Author Question: When testing the statistical significance of a correlation coefficient, the null hypothesis states ... (Read 206 times)

HCHenry

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on: Jun 20, 2018
When testing the statistical significance of a correlation coefficient, the null hypothesis states
 
  a. p = 0, the population correlation is zero.
  b. p = +1.00 or -1.00, the population correlation is +1.00 or -1.00.
  c. r = 0, the sample correlation is zero.
  d. r = +1.00 or -1.00 the sample correlation is +1.00 or -1.00.

Question 2

List five threats to the internal validity of an experimental design.
 
  What will be an ideal response?


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amandalm

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Reply #1 on: Jun 20, 2018
Answer to Question 1

A

Answer to Question 2

History, maturation, instrumentation, regression, and selection bias


HCHenry

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Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

Mochi

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Reply 3 on: Yesterday
Excellent

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