AP Psych: Unit 1 Test, statistical reasoning
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9 Terms
1
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descriptive statistics? can be converted to?
how we organize and summarize data
histogram
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standard devation
how much scores vary around the mean
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68% = great = in
1 standard deviation
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95% = alive = in
2 standard deviation
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99% = fine = in
3 standard deviation
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skewed distribution
one large number pulls the mean
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negative vs positive skew
Pulls mean down
Pulls mean up
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statistical significance
p value has to be less than or equal to 0.5 for it to be significant
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Effect size
strength of relationship between 2 variables (higher percent = stronger effect)
Note 
Flashcards (55)