van Ballegooijen Wouter, Ruwaard Jeroen, Karyotaki Eirini, Ebert David D, Smit Johannes H, Riper Heleen
Section Clinical Psychology, Vrije Universiteit Amsterdam, Van der Boechorststraat 1, 1081 BT, Amsterdam, Netherlands.
Department of Psychiatry, VU Medical Centre/GGZ inGeest, Amsterdam, Netherlands.
BMC Psychiatry. 2016 Oct 21;16(1):359. doi: 10.1186/s12888-016-1065-5.
Ecological momentary assessment (EMA) of mental health symptoms may influence the symptoms that it measures, i.e. assessment reactivity. In the field of depression, EMA reactivity has received little attention. We aim to investigate whether EMA of depressive symptoms induces assessment reactivity. Reactivity will be operationalised as an effect of EMA on depressive symptoms measured by a retrospective questionnaire, and, secondly, as a change in response rate and variance of the EMA ratings.
This study is a 12-week randomised controlled trial comprising three groups: group 1 carries out EMA of mood and completes a retrospective questionnaire, group 2 carries out EMA of how energetic they feel and completes a retrospective questionnaire, group 3 is the control group, which completes only the retrospective questionnaire. The retrospective questionnaire (Centre for Epidemiologic Studies Depression scale; CES-D) assesses depressive symptoms and is administered at baseline, 6 weeks after baseline and 12 weeks after baseline. We aim to recruit 160 participants who experience mild to moderate depressive symptoms, defined as a Patient Health Questionnaire (PHQ-9) score of 5 to 15. This study is powered to detect a small between-groups effect, where no clinically relevant effect is defined as the effect size margin -0.25< d <0.25.
To our knowledge, this is the first study to investigate whether self-rated EMA of depressive symptoms could induce assessment reactivity among mildly depressed individuals.
Netherlands Trial Register NTR5803. Registered 12 April 2016. http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=5803 .
心理健康症状的生态瞬时评估（EMA）可能会影响其所测量的症状，即评估反应性。在抑郁症领域，EMA反应性很少受到关注。我们旨在研究抑郁症状的EMA是否会引发评估反应性。反应性将通过EMA对回顾性问卷所测量的抑郁症状的影响来衡量，其次，通过EMA评分的反应率和方差的变化来衡量。
本研究是一项为期12周的随机对照试验，包括三组：第一组进行情绪的EMA并完成回顾性问卷，第二组进行对自身精力感受的EMA并完成回顾性问卷，第三组为对照组，仅完成回顾性问卷。回顾性问卷（流行病学研究中心抑郁量表；CES-D）评估抑郁症状，并在基线、基线后6周和基线后12周进行。我们旨在招募160名有轻度至中度抑郁症状的参与者，轻度至中度抑郁症状定义为患者健康问卷（PHQ-9）评分为5至15分。本研究有能力检测到组间的微小效应，其中无临床相关效应定义为效应量范围-0.25 < d < 0.25。
据我们所知，这是第一项研究抑郁症状的自评EMA是否会在轻度抑郁个体中引发评估反应性的研究。
荷兰试验注册NTR5803。2016年4月12日注册。http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=5803 。
