Psychology Final (Test 4) Flashcards Preview

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Flashcards in Psychology Final (Test 4) Deck (20):
1

Factorial ANOVA

- at least two independent variables/predictors/factors

2

Main-Effects

- looking if there is a difference between the levels of the ONE variable
- "is there a difference with the orientation of psychology used in therapy?"

3

Interactions

- looking to see how the variables interact/depend on each other
- "does life satisfaction DEPEND on how many clubs you belong to"
- "does attention DEPEND on the relationship and emotion"

4

Interpretation

- estimated by looking at the means
- dependent variable on the Y-axis

5

Terminology

- number of variables > at least two [orientation, time practiced]
- levels for each > orientation for psychology has 3 LEVELS [cognitive, psychodynamic, gestalt]

6

Correlation

- relationship between two continuous variables

7

scatterplot

- displays scores of individuals simultaneously

8

positive relationship

- direct
- line points to top right

9

negative relationship

- non-direct
- line points to the bottom right

10

non-realtionship

- no relationship
- no directionality

11

strength

- range rom 1 to -1
- the closer to 1/-1, the stronger the relationship
- coefficient = r
- sign = positive/negative
- value = strength of relationship

12

effect size

large = .50
medium = .30
small = .10

13

correlation formula

r = ∑(X - Mx)(Y - My)/√(SSx)(SSy)

14

correlation df

df = N - 2

15

Chi-Square

- examine multiple categorical/nominal variables
- no means

16

goodness of fit

- does the data fit expectations
- null = test equality OR test pattern

17

Independence

- are the variables independent of each other > two variables
- look at relation > chi-sq

18

chi-square formula [both]

∑(O-E)²) / E

19

contingency table

- displays the frequency for each level of one nominal/categorical variable crossed with each level of the other nominal/categorical variable

20

independence chi-sq df

df = (Ncolumns - 1) x (Nrows - 1)