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A researcher sampled 16 couples and measured the mean difference in their marital satisfaction.Each couple was paired and the differences in their ratings (on a 7-point scale) were taken.If the mean difference in satisfaction ratings for this sample was 1.8 ± 2.0 (MD ± SD) ,then what is the decision at a .05 level of significance?
Tensions
The state of being stretched tight, often used metaphorically to describe a state of mental or emotional strain.
Cortisol Levels
The concentration of cortisol, a stress hormone, in the blood, which can affect various body functions.
Narcolepsy
A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep.
Sleep
A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity, and inhibition of nearly all voluntary muscles during rapid eye movement (REM) and non-REM stages.
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