Advanced Stats Notes

Question 1

What kind of analysis do you run if a problem asks you to “predict” something

Answer 1

Use Multiple Regression

Question 2

subject IVs

Answer 2

an IV that cannot be assigned to people (i.e., gender, age, etc.)

Question 3

manipulated IVs

Answer 3

something that is changed for the purpose of the experiment (i.e., giving one group a tx and not the other)

Question 4

multivariate

Answer 4

having more than one variable

Question 5

Type 1 error

Answer 5

false positive for an effect

Question 6

type 2 error

Answer 6

false negative for an effect

Question 7

Why do we do ANOVA instead of multiple t-test

Answer 7

to reduce the chance of type 1 error

Question 8

Whats does SPSS consider to be “scale” scores?

Answer 8

Interval & ratio

Question 9

multivariate

Answer 9

2 or more DVs

Question 10

factorial

Answer 10

2 or more IVs

Question 11

why use post-hoc?

Answer 11

to reduce type 1 error/inflating the alpha

Question 12

what does robust mean?

Answer 12

the ability to tolerate some violation of the assumption - mostly normality

Question 13

ordinal interaction

Answer 13

Lines don’t meet for plotted values - parallel (Fig. 4.2)

Question 14

disordinal interaction

Answer 14

Plotted lines meet on graph - like an X (Fig. 4.3)