The dependent variable in the research question, "Is the quality of life of nursing home residents affected by their functional ability or hearing acuity?" is which of the following?
A) Quality of life
B) Functional ability
C) Hearing acuity
D) Residence in a nursing home
A
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The presumed cause is the independent variable and the presumed effect is the dependent or outcome variable. Variation in the dependent variable is presumed to depend on variation in the independent variable. In this case, the presumed causes are functional ability or hearing acuity. The presumed effect is quality of life, which is thus the dependent variable. Residence in a nursing home is not the effect.
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