The standard deviation of a test indicates the extent to which ...

[itsmyluck]

The standard deviation of a test indicates the extent to which
 
  a. any given student outscores others who took the same test.
  b. students score the same on the first half versus the second half of the test.
  c. students score the same on repeated administrations of the test.
  d. any score in a distribution varies from the mean.

Question 2

Explain how you would put the Premack principle into practice.
 
  What will be an ideal response?

[mmpiza]

Answer to Question 1

D

Answer to Question 2

When using the Premack principle, you would tell students they will receive one of the rewards they have chosen after they complete a specified assignment.

[itsmyluck]

Thanks for the timely response, appreciate it

[shailee]

Excellent