Flashcards in Final Deck (20):

1

## Standard error of estimate

###
Sy.x

Amount of error in a prediction, average deviation from line

2

## Sy.x increases with

### increased variance

3

## Pearson r

### measure of strength and direction of a relationship, linear only

4

## r^2

### variability in a factor associated with differences

5

## Properties of r

###
From -1 to 1

+-1 is a perfect linear relationship

Unitless

Represents the strength/magnitude of a relationship

6

## Direct relationship

### +r

7

## Inverse relationship

### -r

8

## As standard error increases

### the greater the spread

9

## y = bx + a

### b = slope, a = y-intercept

10

## Use corr t test for

### matched groups, repeated measures, or when the data is clearly correlated

11

## Repeated Measures

### Same subjects in all conditions

12

## For a t test, assume _____ of variance

### homogeniety

13

## The higher the ____, the more leptokurtic the t

### N

14

## As N increases, the standard deviation of t gets closer to

### 1

15

## Directional tests are ____ powerful than non-directional test

### more

16

## Power increases as _____ increase

### alpha, N, intensity of IV

17

## Type 1 Error

### Rejcted Ho when it was true, power = alpha

18

## Type 2 Error

### Failed to reject Ho when it was false, power = beta

19

## Correctly rejecting Ho

### power = 1 - beta

20