WEEK 1

Question 1

variance and standard deviation relevance

Answer 1

standard deviation is equal to square root of variance

Question 2

power analysis

Answer 2

adresses type 2 erros

Question 3

Cohens d sizes

Answer 3

small: 0.2
medium: 0.5
large: 0.8

Question 4

singapore statements

Answer 4

1. honesty
2. good stewardship
3. accountability
4. professional courtesy

Question 5

inferential statistics

Answer 5

variance unaccounted for

Question 6

surveys measure

Answer 6

variables as they naturally occur

Question 7

experiments manipulate

Answer 7

variables to isolate their effects

Question 8

within-subjects

Answer 8

same participants in all conditions

Question 9

between-subjects

Answer 9

different participants across conditions

Question 10

systematic variation

Answer 10

variation can be explained by model

Question 11

non-significant p value

Answer 11

p more than<.50

Question 12

significant p value

Answer 12

p less than >.50

Question 13

type 1 error

Answer 13

false positive

Question 14

type 2

Answer 14

false negative

Question 15

a alpha value

Answer 15

0.05

Question 16

b beta value

Answer 16

0.020

Question 17

parametric statistics

Answer 17

make assumptions about the data

Question 18

non-parametric

Answer 18

make no assumptions about the data