A researcher is studying psychological factors in academic achievement among teenage girls. One variable she is particularly interested in is competitiveness. What information does a measure of variability for the variable competitiveness convey? Check all that apply. Do all teenage girls have the same amount of competitiveness? What is the average value for the variable competitiveness among teenage girls? How consistent are the values for competitiveness among teenage girls? What is the most common value for the variable competitiveness among teenage girls?