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Author Question: Measures of variability describe the A. spread of scores in a distribution B. central tendency ... (Read 47 times)

sdfghj

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on: Jun 22, 2018
Measures of variability describe the
 
  A. spread of scores in a distribution
  B. central tendency of a distribution of scores
  C. reliability of an assessment instrument
  D. validity of an assessment instrument

Question 2

In a normal distribution, represented by a bell-shaped curve, the largest percentage of scores falls between
 
  A. 0 and 1 standard deviation from the mean
  B. 1 and 2 standard deviations from the mean
  C. 2 and 3 standard deviations from the mean
  D. 3 and 4 standard deviations from the mean
  E. unknown; it is impossible to determine from the information presented


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jennafosdick

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Reply #1 on: Jun 22, 2018
Answer to Question 1

A

Answer to Question 2

A


sdfghj

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Reply 2 on: Jun 22, 2018
YES! Correct, THANKS for helping me on my review

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Reply 3 on: Yesterday
Wow, this really help

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