Immediate and short term effects of values-based interventions on paranoia

Evans, Nicole, Ellett, Lyn, Carpenter, Rebecca and Kingston, Jessica (2019) Immediate and short term effects of values-based interventions on paranoia. Journal of Behavior Therapy and Experimental Psychiatry, 1-37. (doi:10.1016/j.jbtep.2019.101500).

Abstract

Background and objectives
Paranoia is a common, distressing, and persistent experience that can negatively impact on health, wellbeing, and functioning. This study examined the immediate and short term (2-weeks) effects of two values-based interventions, versus a non-values control, on paranoia, as well as the moderating effect of self-esteem.

Methods
171 non-clinical adults were randomised to a value-affirmation and goals task (VAG: clarifying and reflecting on core values and setting value-based goals) (n = 57), a value-affirmation task (VA: clarifying and reflecting on core values without setting value-based goals) (n = 57), or a non-affirmation control task (NAC) (n = 57). Paranoia was assessed at baseline (T1), post-intervention (T2), and two weeks post-intervention (T3). Self-esteem was measured at baseline.

Results
VAG participants had significantly lower state paranoia scores at T3 than VA (d = .34) and NAC (d = .31) participants. This effect was moderated by trait self-esteem: At follow-up, the differential effect of condition on state paranoia was greatest amongst those with low self-esteem, with the VAG condition being most beneficial for participants with low self-esteem and the VA condition being least beneficial.

Limitations
Without a goals only control group it is possible that the benefits of VAG over VA were attributable to setting and achieving goals. Use of a nonclinical sample limits generalisability to clinical groups.

Conclusions
The findings suggest that focusing on a deeply held value and setting goals in line with that value reduced paranoia. This intervention may be most beneficial for individuals with low self-esteem.

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Contributors

Author: Lyn Ellett

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