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Bill is involved in a research study on the effectiveness of a new antidepressant.
Bill is involved in a research study on the effectiveness of a new antidepressant. If Bill serves as his own control, which of the following is the research employing?
double-blind method
single-blind method
between-subject design
within-subject design
quasi-independent variable
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Wind?or maybe sand?i really am giving my best guess'