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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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galekias galekias
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6 years ago
The purpose of cross-validation is to
 
  a. validate the test for different criteria.
  b. try out the test with the same sample after a period of time.
  c. confirm the correlation in a different sample.

Ques. 2

Assume you are using GRE scores and undergraduate grades to predict graduate GPA. If the correlation of GRE scores and undergraduate grades were .18 rather than .56, then GRE scores would be ____ for predicting graduate GPA.
 
  a. more useful c. less useful
  b. equally useful

Ques. 3

The correlation between the Graduate Record Examination (GRE) and undergraduate GPA for all people taking the GRE is .56 . If the correlation is recomputed for only those students admitted to graduate school, the value of the correlation will most likely
 
  a. increase. c. stay the same.
  b. decrease.
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HeyoooHeyooo
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6 years ago
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galekias Author
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#2
6 years ago
I'm still confused, but thanks for answering correctly
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