PBSI FINAL EXAM QUESTIONS WITH
100% CORRECT ANSWERS | LATEST
VERSION 2025/2026.
What is a factorial ANOVA used for ? - ANS multiple factor experiments ( 2 or more
independent variables )
The number of numbers in the factorial design = - ANS the number of factors ( independent
variables )
Value of numbers in factorial design = - ANS the number of levels for each factor
How to find the number of conditions - ANS multiply the numbers in the factorial notation
Two types of outcomes in factorial designs - ANS main effects and interactions
Main effect ( factorial design) - ANS The overall effect of a single factor ( ignoring the other
factors )
There are as many _____ as there are ____ - ANS main effects , factors
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, interactions (factorial designs) - ANS When the effect of one factor depends on the level of
another factor
How to calculate Interactions ? - ANS calculate differences within rows/columns
How to calculate Main effect ? - ANS computer row and column means and combine
How to find main effect on graphs ? - ANS - One like higher than the other
- One side of graph is higher than the other
How to find Interactions on graph? - ANS If lines are not parallel
Interaction is almost always more interesting then what we should interpret - ANS True
Reporting results for Factorial Analysis - ANS - report conclusion for each effect
- write up statistic for significant effects
- Only interpret significant effects and report their means
What do Correlations ask ? - ANS how do changes in the value of one variable relate to the
values of another variable ( r)
When do we use correlations ? - ANS when we want to look at relationships between
variables and not split people into groups
What does the correlation coefficient measure? - ANS direction and strength
if r = 0 then there is ... - ANS no relationship
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
100% CORRECT ANSWERS | LATEST
VERSION 2025/2026.
What is a factorial ANOVA used for ? - ANS multiple factor experiments ( 2 or more
independent variables )
The number of numbers in the factorial design = - ANS the number of factors ( independent
variables )
Value of numbers in factorial design = - ANS the number of levels for each factor
How to find the number of conditions - ANS multiply the numbers in the factorial notation
Two types of outcomes in factorial designs - ANS main effects and interactions
Main effect ( factorial design) - ANS The overall effect of a single factor ( ignoring the other
factors )
There are as many _____ as there are ____ - ANS main effects , factors
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, interactions (factorial designs) - ANS When the effect of one factor depends on the level of
another factor
How to calculate Interactions ? - ANS calculate differences within rows/columns
How to calculate Main effect ? - ANS computer row and column means and combine
How to find main effect on graphs ? - ANS - One like higher than the other
- One side of graph is higher than the other
How to find Interactions on graph? - ANS If lines are not parallel
Interaction is almost always more interesting then what we should interpret - ANS True
Reporting results for Factorial Analysis - ANS - report conclusion for each effect
- write up statistic for significant effects
- Only interpret significant effects and report their means
What do Correlations ask ? - ANS how do changes in the value of one variable relate to the
values of another variable ( r)
When do we use correlations ? - ANS when we want to look at relationships between
variables and not split people into groups
What does the correlation coefficient measure? - ANS direction and strength
if r = 0 then there is ... - ANS no relationship
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
