models and experiments

Question 1

how would you describe a linear model as an equation

Answer 1

outcome = model + error

Question 2

experiment

Answer 2

outcome = design + error

Question 3

testing hypothesis in one way design

Answer 3

main effects and contrasts

Question 4

contrasts (one-way designs)

Answer 4

differences between specific group means (coding schemes and associated B)

Question 5

main effects (one-way designs)

Answer 5

overall effect of a condition (f - test)

Question 6

testing hypothesis in two-way (+) designs

Answer 6

interactions
simple contrasts/effects

Question 7

interactions (two-way design)

Answer 7

categorical * categorical (based on effects coding using F-tests and B coefs)

Question 8

simple contrasts/effects (two-way design)

Answer 8

effect of one level in one condition, across levels of another condition

Question 9

pairwise comparisons

Answer 9

compares all levels of a given predictor variable with all levels of the other

Question 10

what happens if you do lots of pairwise tests?

Answer 10

chances of type 1 error increase