Cognitive-Behavior Therapy (CBT) has been shown to be effective in many studies across many contexts. A recent meta analysis published in the Journal of Affective Disorders provided a summary of the most recent studies of CBT for depression (O’Toole et al., 2025). The meta-analysis included 62 randomized controlled studies. They included classic CBT (33%). contemporary CBT (e. g. acceptance and commitment therapy. mindfulness-based cognitive therapy) (51%) and a combination of the two (16%.) There was no difference observed in effects across the different types of CBT. (Source: https: Psychology Today CBT for Depression: How Strong is the Evidence Today?)