Recap previous courses Flashcards

1
Q

What are the steps of a power analysis?

A
  1. determine zcv for H0.
  2. determine xcv for H0.
  3. convert xcv to zcv for H1.
  4. power equals P(Z> Zh1 I h1).
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2
Q

Which factors influence power?

A
  1. sample size.
  2. alpha level.
  3. standard deviation.
  4. true mean of h1.
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3
Q

What are the measures for effect size?

A
  1. cohen’s d: 0.2, 0.5, 0,8.

2. r-square: 0.01, 0.06, 0.14.

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