Blar i forfatter "Johnsen, Tom Johan"
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The Effect of Cognitive–Behavioral Therapy as an Antidepressive Treatment Is Falling: Reply to Ljòtsson et al. (2017) and Cristea et al. (2017)
Friborg, Oddgeir; Johnsen, Tom Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03)This article critically reassesses the nonlinear reanalysis by Ljótsson, Hedman, Mattsson, and Andersson (2017) and reviews Cristea et al.’s (2017) extension of our original meta-analysis (Johnsen & Friborg, 2015) reporting a decline in the effects of cognitive–behavioral therapy (CBT) for treating unipolar depression. Ljótsson et al. fitted a piecewise meta-regression model to the data, indicating ... -
Effekten av kognitiv og dynamisk depresjonsbehandling; Meta-analyser med fokus på temporale aspekter.
Johnsen, Tom Johan (Master thesis; Mastergradsoppgave, 2014-03-27)Denne artikkelen presenterer meta-analyser med fokus på den tidsmessige utviklingen av kognitiv atferds (KAT) og dynamisk terapi mot depresjon. Ved å bruke BDI som utfallsmål og årstall for studie som prediktor, ble meta-regresjonsanalyser utført på grunnlag av effektstørrelser (hedges g) pre/post intervensjon for 98 studier (totalt 2831 pasienter) utført mellom 1977 og 2012. Det ble også utført ... -
The temporal development of cognitive behavioral therapy as treatment for unipolar depression. An evaluation based on three meta-analyses, focusing on time-trends, effect sizes, and associated moderators
Johnsen, Tom Johan (Doctoral thesis; Doktorgradsavhandling, 2021-11-29)The present thesis` main objective was to examine time-trends related to CBT as an anti-depressive treatment. A meta-analytic approach was the tool for such investigations, in which the formats of individual, group (GCBT), and mindfulness-based cognitive behavioral therapy (MCBT) were explored from a temporal point of view, and the results subsequently summarized in four articles. The meta-analyses ... -
Time trends in the effects of mindfulness-based cognitive therapy for depression: A meta-analysis
Thimm, Jens; Johnsen, Tom Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-21)Recent studies suggest that the effects of cognitive therapies for depression show systematic changes over time. A meta‐analysis was conducted to explore the temporal development of the effect of mindfulness‐based cognitive therapy (MBCT) for current depression in studies that used the Beck Depression Inventory (BDI) or the Hamilton Depression Rating Scale (HDRS) as outcome measures. A systematic ...