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Original Source:
Female subjects in an experimental factorial design of
interventions for depression were randomly assigned to
one of four drug therapies (placebo, St. John's wort,
SSRI or TCA) and one of four non-drug therapies
(orientation session, light therapy, exercise or
cognitive therapy). The post intervention Beck
depression scores were regressed on sets of dummy-coded
vectors representing the drug and non-drug interventions
and the interaction of drug and non-drug interventions.
Bear, M. (2001). Interventions to reduce depression in
female college students. Annals of the Society of Teddy
Bear Therapists, 22, 200-210.
(This excerpt appeared on p. 205)
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Use:
Coeds were assigned randomly to all possible
combinations of the four non-drug therapies (light
therapy, exercise, cognitive therapy or a
non-therapeutic orientation session) and four drug
therapies (SSRIs, TCAs, St. John's wort or placebo). The
outcome was measured via the Beck depression
scale (Bear, 2001).
Reference:
Bear, M. (2001). Interventions to reduce depression in
female college students. Annals of the Society of
Teddy Bear Therapists, 22, 200-210.
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