Mediation Step by Step

With Bootstrapping

Here is the model we’ll be testing

Step 1: Create TableHypothesis Direct Beta w/o

MedDirect Beta

w/Med Indirect Beta Mediation type observed

Partial Med MU-Burn-Satw

Partial Med Part-Burn-Satw

Step 2: Direct Effects Significant?

Estimate S.E. C.R. Psatw <--- part .130 .050 2.594 .009satw <--- mu -.525 .040 -13.102 ***

Regression Weights: (Group number 1 - Default model)

Step 3: Update Table

Estimate S.E. C.R. Psatw <--- part .130 .050 2.594 .009satw <--- mu -.525 .040 -13.102 ***

Hypothesis Direct Beta w/o Med

Direct Beta w/Med Indirect Beta Mediation type

observedPartial Med

MU-Burn-Satw -.60***Partial Med Part-

Burn-Satw .12**

Step 4: Set up Bootstrap

Step 5: Run with Mediator

If it throws you an error when you run it with bootstrapping, just run it again, and again, and again, until it runs without an error. If this still doesn’t work,

then close and reopen AMOS and try again.

Step 5a: Direct Effects w/MedHypothesis Direct Beta w/o

MedDirect Beta

w/Med Indirect Beta Mediation type observed

Partial Med MU-Burn-Satw -.60*** -.346

Partial Med Part-Burn-Satw .12** .052

Click here first

Then here

Step 5b: Direct Effects w/MedHypothesis Direct Beta w/o

MedDirect Beta

w/Med Indirect Beta Mediation type observed

Partial Med MU-Burn-Satw -.60*** -.346**

Partial Med Part-Burn-Satw .12** .052 (ns)

Click here first

Then here

Not significant

(ns)**

Step 6a: Indirect EffectsHypothesis Direct Beta w/o

MedDirect Beta

w/Med Indirect Beta Mediation type observed

Partial Med MU-Burn-Satw -.60*** -.346** -.253

Partial Med Part-Burn-Satw .12** .052 (ns) .067

Click here first

Then here

Step 6b: Indirect EffectsHypothesis Direct Beta w/o

MedDirect Beta

w/Med Indirect Beta Mediation type observed

Partial Med MU-Burn-Satw -.60*** -.346** -.253**

Partial Med Part-Burn-Satw .12** .052 (ns) .067**

Click here first

Then here

Step 7: Mediation?Hypothesis Direct Beta w/o

MedDirect Beta

w/Med Indirect Beta Mediation type observed

Partial Med MU-Burn-Satw -.60*** -.346** -.253** Partial

Partial Med Part-Burn-Satw .12** .052 (ns) .067** Full

No Mediation• If Indirect is not significant• Also if direct effect of IV on Med is insignificant or if direct effect

from Med to Y is insignificantIndirect Effects• Both direct effects are not significant, but Indirect effect is significantFull Mediation• Given the direct effects were significant prior to adding the mediator• If Indirect is significant and Direct (with med) is not significantPartial Mediation• If Direct (with med) & Indirect are significant