Behavioural explanations of depression - Lewinsohn

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Aim?
Comparing the amount of positive reinforcement experienced by depressed and non=depressed patients.
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Method?
A longitudinal study over 30 days where participants completed a self-report of pleasent activities on the pleasent events schedule and rated depression using a depression adjectives checklist.
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Participants?
30 p's diagnosed with depression, a group with a disorder other than depression and a control group.
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Procedure?
P's checked their mood daily using the adjective checklist, inc words like happy, blue, lucky. P's tciked the ones they felt. Then they completed the pleasent events schedulre rating 320 activities. Rated x2, 1 for pleasentness + 1 for freq. On 3pt.
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Results?
Sig, positive correlations between mood ratings and pleasant activites with involvement in more activies correlating with more positive mood.
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Results (2)
However, much individual differences - more to depression then reinforcement.
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Conclusion?
Link between positive reinforcement and mood but further research needed to identify indivudual characterisitcs that make some people more influenced than others.
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A longitudinal study over 30 days where participants completed a self-report of pleasent activities on the pleasent events schedule and rated depression using a depression adjectives checklist.

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