A Regression Analysis of Students' College Grade Point Averages (GPAs)

question 527

Multiple Choice

A regression analysis of students' college grade point averages (GPAs) and their high school GPAs
Found R2 = 0.311. Which of these is true?
I. High school GPA accounts for 31.1% of college GPA.
II. 31.1% of college GPAs can be correctly predicted with this model.
III. 31.1% of the variance in college GPA can be accounted for by the model

• A) none of these
• B) I and II
• C) III only
• D) II only
• E) I only

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Definitions:

Short-term Memory

A capacity of the brain to hold a small amount of information in an active, readily available state for a short period of time, typically around 20 to 30 seconds.

Meaningful Units

Fundamental components of language or information that carry significance and help in understanding the whole.

George Miller

A psychologist best known for his theory that the average number of objects an individual can hold in short-term memory is 7 ± 2.

Magic Number

A concept in cognitive science referring to the short-term memory capacity of about seven items (plus or minus two).