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Author Question: The estimated standard error of the mean is always used to predict a. sample size b. bias c. ... (Read 62 times)

captainjonesify

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on: Jun 20, 2018
The estimated standard error of the mean is always used to predict
 
  a. sample size
  b. bias
  c. central tendency
  d. the variability of the distribution of sample means

Question 2

An item would be considered extremely difficult if it had a difficulty
  index of
 
  a. .99
  b. .50
  c. .01
  d. none of these, since item difficulty is not a quantified value.


Ptupou85

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

d

Answer to Question 2

c


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