Week 9 - ANOVA

Question 1

T-test

Answer 1

2 groups, 1 measure

Question 2

Type 1 error

Answer 2

False alarm

Question 3

Type 2 error

Answer 3

Miss. Say null when actually it is H1

Question 4

F-statistic

Answer 4

Step 1 of ANOVA

Question 5

ANOVA

Answer 5

Analysis of variance >2 groups

Question 6

1-way ANOVA and 2-way ANOVA

Answer 6

Between groups + within groups designs. 1 DV, 2 IVs

Question 7

Post-hoc tests

Answer 7

ANOVA finds significant differences, post-hoc tells us where!

Question 8

Bonferroni

Answer 8

Significance level divided by number of t-tests eg. 0.05 / 2 = 0.025

Question 9

Factorial ANOVA

Answer 9

1DV, multiple IVs

Question 10

Interaction effect

Answer 10

Effect of 1 IV depends on level of 2nd IV eg. vitamins and exercise on health!

Question 11

ANCOVA

Answer 11

2+ groups and covariate (control for 3rd variable)

Question 12

MANOVA

Answer 12

2+ groups and multivariate (>1 DV)

Question 13

MANCOVA

Answer 13

2+ groups, multivariate (>1 DV) and covariate (control 3rd variables)

Question 14

Assumptions for t-test, ANCOVA etc.

Answer 14

Independent samples, normal distribution, homogeneity of regression slopes, linear and homogeneity of variance.

Question 15

Homogeneity of regression slopes

Answer 15

No interactions

Question 16

Homogeneity of variance

Answer 16

Variance is equal, Levene’s test

Question 17

To find normal distribution

Answer 17

Kolmogorov-Smirnov or Shapiro-Wilk