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Home Q & A Board Science-Related Homework Help Psychology
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palantriel palantriel
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6 years ago
The study described above is an example of
 
  a. experimental research
  b. post-facto research
  c. correlational research
  d. longitudinal research

Question 2

Ordinal data are summarized using the _____ as a measure of variability.
 
  a. range
  b. standard deviation
  c. variance
  d. We do not have enough information to decide.

Question 3

The standard error of the mean must equal
 
  a. the standard deviation of the sample's distribution of individual scores
   b. the standard deviation of the entire population's distribution of
   individual scores
   c. the average of the sample's distribution of individual scores and the
   population's distribution of individual scores
   d. the standard deviation of the entire sampling distribution of means

Question 4

The z test assumes that
 
  a. the sample mean is equal to the population mean
   b. the standard deviation of the sample scores is equal to the standard
   deviation of the distribution of sample means is normal
   c. the distribution of sample means is normal
   d. none of these, since the z test is assumption free
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吳家良吳家良
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6 years ago
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palantriel Author
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#2
6 years ago
Passed my quiz with this!
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#3
6 years ago
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