3489PsychologyMedium
A researcher wants to test the hypothesis that the number of bystanders affects the probability of helping behavior. She sets up three conditions, one with no bystanders, one with two bystanders and one with four bystanders. Which of the following is true?
Athere is one independent variable and three dependent variables
Bthere is one independent variable having four levels
Cthere is one independent variable having three levels
Dthere are three independent variables having one level each
Correct answer
C. there is one independent variable having three levels
Explanation
The correct answer is there is one independent variable having three levels.