What is the purpose of using an ANCOVA?
A. Examining the effect a treatment or experimental variable has on an outcome variable, whilst isolating the effects of a different variable which may also have an effect on the outcome variable.
B. Examining the effect an outcome variable has on an experimental or treatment variable, whilst isolating the effects of a different variable which may also have an effect on the outcome variable.
C. Examining the effect an independent variable has on a treatment or experimental variable, whilst isolating the effects of the outcome variable.
D. Examining the effect an independent variable has on an outcome variable, whilst isolating the effects of the experimental or treatment variable.
Answer: A
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Which of the following depends on the number of complete vibrations that the vibrating object makes in one second?
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