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Stats
stats midterm
12
Psychology
Graduate
10/18/2012

Additional Psychology Flashcards

 


 

Cards

Term
skewness
Definition
degree of symmetry of distribution
Term
kurtosis
Definition
degree of peakedness or flatness of distribution
Term
one sample t-test
Definition
1 categorical (time), 1 continuous DV
Term
independent sample t-test
Definition
1 categorical IV, 1 continuous DV; two different groups of ppl and compare scores on one occasion
Term
paired sample t-test
Definition
1 categorical IV (i.e. time) 1 continuous DV; also called repeated measures; also dyad (mom and child)
Term
ANOVA
Definition
1 3+ distinctual categorical IVs, 1 continuous DV to detect differences in mean scores on continuous variable (repeated or independent)
Term
factorial ANOVA
Definition
2 categorical IVs, 1 continuous DV
Term
interaction of power, effect size, and sample size
Definition
sample size increasing, increases power
greater power= greater effect size
smaller n= greater effect size
Term
effect size
Definition
cohen's d (d) .2 small, .5 med, .8 lg CANNOT interpret as percent of variance
eta squared (n)- can interpret as % variance
Term
t-tests
Definition
two groups or two sets of data and need to compare mean score on continuous variable
Term
ANOVA research questions
Definition
Are older people more optimistic than younger people?
Term
age and ANOVA
Definition
would need to collapse into categories to use as IV (into 3+ groups)
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