al affective disorder ffective disorder (SAD) Is a type of depression during sea

Question

al affective disorder ffective disorder (SAD) Is a type of depression during seasons with less daylight (e.q which is increased ex rent intensities of light (low, medium, high) in a light box, herapy, posure to light used to improve mood. A researcher tests this therapy to be be most effective for light therapy). All participants rated their mood following this therapsc (e.g., winter months). One therapy for SAD is by exposing a sample of SAD in the morning or at night (these are the úmes though improved mood). The hypothetical results are given in the following table. either on a scale from 1 (poor mood) to 9 Light Intensity Low Medium High Morning of Night

Explanation / Answer

applying two way ANVOA on above data:

please revert for other parts if any.

Source of Variation SS df MS F time of day 0.69 1.00 0.69 0.26 intensity 21.50 2.00 10.75 4.04 interaction 0.72 2.00 0.36 0.14 error 79.83 30.00 2.66 Total 102.75 35.00

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