The Negative Effects Questionnaire (NEQ) has currently been evaluated in terms of its reliability and factor structure in an article published in the peer-reviewed journal PLoS One. Moreover, in accordance with idea of providing important and interesting research for free, the article is available for everyone through so-called open access – just click on the title below to read it online or download to your computer, tablet, or smartphone.

Rozental, A., Kottorp, A., Boettcher, J., Andersson, G., & Carlbring, P. (2016). Negative Effects of Psychological Treatments: An Exploratory Factor Analysis of the Negative Effects Questionnaire for Monitoring and Reporting Adverse and Unwanted Events. PLoS ONE, 11(6), e0157503. doi: http://10.1371/journal.pone.0157503

More research on the self-report measure will be performed in 2017-2018, both in terms of its psychometric properties and how it relates to treatment outcome in psychological treatments. Please visit this website for updates as it develops.

Additional references

For additional articles related to the research of negative effects of psychological treatments in general, and for Internet-based treatment interventions in particular, please consult some of the references below.

Rozental, A., Magnusson, K., Boettcher, J., Andersson, G., & Carlbring, P. (2017). For better or worse: An individual patient data meta-analysis of deterioration among participants receiving Internet-based cognitive behavior therapy. Journal of Consulting and Clinical Psychology, 85(2), 160-177.

Ebert, D. D., Donkin, L., Andersson, G., Andrews, G., Berger, T., Carlbring, P., Rozental, A., Choi, I., Laferton, J. A. C., Johansson, R., Kleiboer, A., Lange, A., Lehr, D., Reins, J.A., Funk, B., Newby, J., Perini, S., Riper, H., Ruwaard, J., Sheeber, L., Snoek, F. J., Titov, N., Ünlü Ince, B., van Bastelaar, K., Vernmark, K., van Straten, A., Warmerdam, L., Salsman, N. and Cuijpers, P. (2016). Does Internet-based guided-self-help for depression cause harm? An individual participant data meta-analysis on deterioration rates and its moderators in randomized controlled trials. Psychological Medicine, 46(13), 2679-2693. doi: http://dx.doi.org/10.1017/S0033291716001562

Rozental, A., Boettcher, J., Andersson, G., Schmidt, B., & Carlbring, P. (2015). Negative effects of Internet interventions: A qualitative content analysis of patients’ experiences with treatments delivered online. Cognitive Behaviour Therapy, 44(3), 223-236. doi: http://dx.doi.org/10.1080/16506073.2015.1008033

Bystedt, S., Rozental, A., Andersson, G., Boettcher, J., & Carlbring, P. (2014). Clinicians’ perspectives on negative effects of psychological treatments. Cognitive Behaviour Therapy, 43(4), 319-331. doi: http://dx.doi.org/10.1080/16506073.2014.939593

Rozental, A., Andersson, G., Boettcher, J., Ebert, D. D., Cuijpers, P., Knaevelsrud, C., Brjánn Ljótsson, B., Kaldo, V., Titov, N., & Carlbring, P. (2014). Consensus statement on defining and measuring negative effects of Internet interventions. Internet Interventions, 1(1), 12-19. doi: http://dx.doi.org/10.1016/j.invent.2014.02.001

Boettcher, J., Rozental, A., Andersson, G., & Carlbring, P. (2014). Side effects in Internet-based Interventions for social anxiety disorder. Internet Interventions, 1(1), 3-11. doi: http://dx.doi.org/10.1016/j.invent.2014.02.002