Moderation and Mediation
Correlations / Multiple Regression
Qualitative Analysis / Mixed-Methods
Quasi-Experimental Design
100

What is the total effect?

Path c

The relationship between predictor and outcome, without the influence of the mediator.

100

When is spearman rank-order correlation used?

2 ranked/ordinal variables

100
Are qualitative designs "inductive" or "deductive"? bottom-up or "top-down"?

qualitative designs are inductive and "bottom-up"

quantitative designs are deductive and "top-down"

100

How does a comparison group differ from a control group?

Comparison groups are not randomly assigned.

200

The following is an example of moderation or mediation?

Expressing one's emotions is a healthy way to reduce negative affect, which in turn improves life satisfaction. 

Mediation

200

r = .05

What is the Coefficient of Determination?

.25% or .0025

200

What does "saturation" mean in qualitative design

When the major themes are fully developed, and no new information will change the findings. 

200

What are two threats to internal validity?

Maturation, history, selection, attrition, etc

300

How many predictors in this equation? Do not count the moderation term.

Y = a + bX + bW + bX*W

TWO predictors - X and W

300

Bob has a dataset from an experiment. All analysis from this dataset is not correlational. TRUE OR FALSE?

False - you can still run correlational analysis depending on the variable you use. 

300

What does it mean when a qualitative design is "iterative"

It changes and refines itself over time. For example - interview questions change as the interviewer learn more about the construct of interest. 

300

What is the biggest reason why researchers cannot do an experimental design, and instead do a quasi-experimental design?

When you cannot randomly assign participants to conditions. 

400

What is the difference between multiple mediation and serial mediation?

Multiple mediation is when multiple mediators explain the relationship between predictor and outcome.

Serial mediation is when one mediator in turn influences another to explain the relationship between predictor and outcome.

400
What's the benefit of hierarchical regression analysis over simultaneous regression?

Can see unique variance accounted for by each subsequent step.

400
Dr. Chen is interested in developing a scale that captures Taoist beliefs. He first conducted focus groups with Buddhist monks. With this information, he created a 10-item scale called the Taoist Belief Scale. He then conducted a large survey study with 500 college students to assess the validity and reliability of the scale. What design captures Dr. Chen's two studies. 

Sequential mixed-methods (Qual first then quant)

400
In what situation are regression discontinuity designs not appropriate?

When there is not a way to create an arbitrary "cut-off" score. 

500

Scenario 1: 

Total effect = .45

Direct effect = .44

Scenario 2: 

Total effect = .45

Direct effect = .10

Which one is more likely to have sig. mediation?


Scenario 2

500

Name three "issues" that affect pearson's r

outliers, range restriction, Nonlinearity

500
What are two ways to make a "good" interview?

Open-ended questions, reflections, validations, semi-structured (vs. structured)

500

What is the name of this research design

O1 O2 O3 X O4 O5 O6 -X O7 O8 O9 

Interrupted time series design with reversal

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