To examine whether baseline hypnotic suggestibility moderated changes in depressive symptoms over time and whether this effect varied across treatment groups.
Approach:
Participants: Ninety-four patients with mild to moderate depressive symptoms were randomized to group hypnosis, progressive muscle relaxation (PMR), or control, with randomization conducted using a computer-generated sequence.
Key Findings:
Baseline hypnotic suggestibility was not associated with differential change in depressive symptoms over time in the control group.
No indication that the association differed in the hypnosis or PMR group compared to the control group.
Post hoc power analysis indicated that group sizes were insufficient to reliably detect small-to-moderate associations.
Interpretation:
Exploratory analyses did not indicate that hypnotic suggestibility moderated changes in depressive symptoms across treatment groups.
Limitations:
Limited statistical power due to small sample size, which may affect the reliability of the findings.
Conclusion:
Exploratory findings suggest that larger studies are needed to further investigate treatment-response moderators.
