Biostats Exam 3 (ANOVA)

ANOVA stand for

ANalysis Of VAriance

ANOVA concerns

sources of variance in a dataset

One-Way ANOVA is more similar to

t-Tests than it is to the other ANOVA tests

F-ratio

The variability between groups divided by the variability within groups

What kind of test is ANOVA

Omnibus test

Omnibus test

an overall difference exists, without going into the specifics of any differences

One Factor ANOVA type of data

interval or ratio data

Samples in One Factor ANOVA

ndependent from one another

Degrees of freedom in One Factor ANOVA

(number of scores) - 1

Repeated Measures ANOVA subjects

independent from one another

Repeated Measures ANOVA data

Normal

sphericity for ANOVA

variance of each variable is equal

Multivariate Tests

How strongly the factor accounts for changes in the variables

Mauchly's Test

if the variances are equal

Greenhouse-Geisser Correction

Adjustment for violations of sphericity in ANOVA.

Post-Hoc analyses

statistical analyses that the researcher did not plan for before data collection or analyses began.

when will a Post-Hoc analyses get run

Getting a significant result on the initial test