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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: J Pain Symptom Manage. 2021 Jul 31;63(1):11–22. doi: 10.1016/j.jpainsymman.2021.07.023

Table 1.

Study Design

Condition Social Support Effectiveness Psychoeducation (1 Session vs. 3 Sessions) Decision Support Communication Training (Yes vs. No) Ottawa Decision Guide Training (Yes vs. No)
1 1 session 1 session 1 session
2 1 session 1 session No sessions
3 1 session No sessions 1 session
4 1 session No sessions No sessions
5 3 sessions 1 session 1 session
6 3 sessions 1 session No sessions
7 3 sessions No sessions 1 session
8 3 sessions No sessions No sessions

Note: This factorial design should not be considered an 8-arm trial in which 7 conditions are compared to a control condition. Rather, the purpose is to examine the main effects of each component and interactions between components. In this full factorial design, the component levels are balanced with respect to each other, hence it is possible to estimate the main component effects within the same model and using data from all participants.