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Table 1 Fractional factorial design

From: Using the multiphase optimization strategy to adapt cognitive processing therapy (CPT MOST): study protocol for a randomized controlled factorial experiment

Condition

Core Session 1 (Brief Psychoeducation, Impact Statement)

Core Session 2 (A-B-C)

Modified A-B-C

Challenging Questions

Problematic Patterns

Challenging Beliefs

Module Choice

Final Session

1

On

On

Off

Off

Off

Off

On

On

2

On

On

On

Off

Off

Off

Off

On

3

On

On

Off

On

Off

Off

Off

On

4

On

On

On

On

Off

Off

On

On

5

On

On

Off

Off

On

Off

Off

On

6

On

On

On

Off

On

Off

On

On

7

On

On

Off

On

On

Off

On

On

8

On

On

On

On

On

Off

Off

On

9

On

On

Off

Off

Off

On

Off

On

10

On

On

On

Off

Off

On

On

On

11

On

On

Off

On

Off

On

On

On

12

On

On

On

On

Off

On

Off

On

13

On

On

Off

Off

On

On

On

On

14

On

On

On

Off

On

On

Off

On

15

On

On

Off

On

On

On

Off

On

16

On

On

On

On

On

On

On

On

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Trials

ISSN: 1745-6215