"A psychologist was interested in the effect of hunger on psychological disturbances. The psychologist deprived half of a group of healthy volunteers of food for one day and fed the other half normally, then administered a personality survey to all the participants. What was the independent variable?"

food deprivation                                                

Explanation:

Independent variable: In scientific research, the term "independent variable" is described as one of the variables that are being manipulated, altered, and change by the experimenter or the researcher to see or analyze its effect or consequences on the second variable named dependent variable. If an investigator or researcher makes any changes in the "independent variable" then a direct effect is being noticed in the "dependent variable" of the same experimenter or research.

In the question above, the independent variable is "food deprivation".

i believe she will have 25 quarters.

step-by-step explanation: