correlations Flashcards

1
Q

define correlation

A

the relationship between two variables

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2
Q

positive correlation

A

two variables change in the same direction

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3
Q

negative correlation

A

two variables tend to change in the opposite direction

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4
Q

null hypothesis

A

no correlation in population from which sample comes

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5
Q

non-experimental studies

A

allow us to measure naturally exisitng variables
ethical and practical

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6
Q

test-retest reliability

A

stability over time or external reliability

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7
Q

concurrent validity

A

assess vailidty of new questionnaire or test by comparing scores with those produced by existing measure

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8
Q
A
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