Download Terminology and Concepts in Analysis of Variance (ANOVA) and more Quizzes Psychology in PDF only on Docsity!
main effect
impact of one factor on the dependent variable averaged across the factors TERM 2
interaction effect
DEFINITION 2 Situation in a factorial ANOVA in which a combination of variables has an effect that could not be predicted from the effects of the two variables individually TERM 3
factorial design
DEFINITION 3 Way of organizing a study in which the influence of two or more variables is studied at once by setting up the situation so that a different group of people are tested for each combination of the levels of the variables TERM 4
planned comparison
DEFINITION 4 comparisons made before collecting data TERM 5
post hoc comparison
DEFINITION 5 comparisons made after collecting data
factor (in analysis of variance)
independent variable or subject variable implies only in situation of analysis and variance TERM 7
independent variable
DEFINITION 7 directly manipulated by the researchers TERM 8
subject variable
DEFINITION 8 characteristic someone brings to a study, which is not directly manipulated TERM 9
What is the basic concept of the F ratio?
DEFINITION 9 Explained varience divided by error variance TERM 10
Write and label the terms of the structural
model equation for a single score in one-way,
between groups, univariate ANOVA.
DEFINITION 10 X GM) = (X M) + (M GM)(X GM) = How much the score deviates from the grand mean(X M) = Deviation of sample score from sample mean(M GM) = Deviation of sample from grand mean due to the independent variable
What are the assumptions of two-way,
between groups, univariate ANOVA?
Populations follow a normal curve Populations have equal variances Observations are independent Dependent variable data are interval or ratio TERM 17
a) Draw and label the circle of the dependent
variable variance with divisions for two-way
ANOVA (i.e., explained variance, unexplained
variance, etc.). (b) Briefly explain what the
drawing represents.
DEFINITION 17 Definition TERM 18
Another term for independent variable or
subject variable in ANOVA is
DEFINITION 18 factor TERM 19
Another term for mean square in an ANOVA
table is
DEFINITION 19 variance TERM 20
Another term for error term in a between
groups ANOVA table is
DEFINITION 20 within groups
The smallest identifiable group in an ANOVA
design is called a
cell TERM 22
ANOVA is an acronym for
DEFINITION 22 Analysis of Variance. TERM 23
In a two-way ANOVA, if we know that one
main effect is significant, (a) how does that
affect the probability that the other main
effect will be significant? (b) How does that
affect the probability that the interaction will
be significant?
DEFINITION 23 a. No effect...b. No effect
