13. "Students taught first aid by programmed instruction will achieve at a higher level than those taught first aid by the traditional method." The independent variable in this hypothesis is:
A) students
B) level of achievement
C) programmed instruction
D) method of instruction
14. In the example in question 9, the dependent variable is
A) studehts
B) level of achievement
C) programmed instruction
D) method of instruction
15. Statements or predictions that are tested by collecting objective evidence are called
A) assumptions
B) indicators
C) hypotheses
D) premlses
16. A research report states that Group A was exposed to a new teaching method and Group B was exposed to a traditional method. At the end of a four month period, each group was given the same achievement test. Group A had a mean score that was higher than the mean score for Group B. The dependent variable in this study was the
A) achievement scores of the students
B) motivation of the students
C type of teaching
D length of the period of instruction