Factor Analysis

Question 1

Define construct

Answer 1

An explanation of something that is not directly observable, but is created to understand or explain a phenoma

Question 2

What are other words used instead of CONTEXT

Answer 2

Factors
latent variables

Question 3

Define items

Answer 3

Specific questions or statements on a larger questionnaire that are ‘filling in’ for the construct of interest

ex. ‘I feel sad’ would fill the construct of ‘sad’

Question 4

What are five response scales used in psychology?

Answer 4

Dichotomous scale
Likert scale
Unipolar scale
bipolar scale
visual analogue scale

Question 5

What is a dichotomous scale?

Answer 5

Not really a scale- asks close ended questions (yes/no answers) therefore someone may not be able to truly represent themselves

Question 7

What is correlation?

Answer 7

measures the relative strength of the linear relationship between two variables

Question 8

What is considered a weak correlation

Answer 8

0

Question 9

What is considered an insignificant effect size

Answer 9

r=+/- 0.1

Question 10

What is considered a medium effect size?

Answer 10

r=+/-0.3

Question 11

What is considered a large effect size?

Answer 11

r=+/-0.5

Question 12

What is the average effect size in social psychology?

Answer 12

R=0.21

Question 13

If your r is larger than ___ it means you are essentially measuring/comparing identical factors

Answer 13

0.8

Question 14

What is a correlation coefficient

Answer 14

another way to present the effect size.

essentially is r. r is the slope of the linear regression analysis (the line on the graph) r is always between -1 and 1, with 0 meaning no correlation whatsoever

Question 15

How can you find r?

Answer 15

absolute value of the correlation r can be found from R^2

can calculate the slope of the linear regression of two standardized variables

Question 16

Why is factor analyses necessary?

Answer 16

to see if there is a common dimension between factors

To test for clusters of variables or measures

Question 17

What is the point of matrix algebra?

Answer 17

to create clusters and correlations

Question 18

What kind of technique is factor analysis?

Answer 18

Data reduction, bc the end goal is to have less data than what was started with

Question 19

What does it mean if the factor loading is above 0.3?

Answer 19

There is a moderate relationship

Question 20

What does it mean if the factor loading is negative?

Answer 20

the factors are at opposite ends of the spectrum