A Counseling Psychologist Developing a Technique to Reduce Procrastination Has

Multiple Choice

A counseling psychologist developing a technique to reduce procrastination has students time their procrastination for a week and uses this as a pretest measure of procrastination. Students then attend a workshop in which they are instructed to do a specific warm-up exercise for studying by focusing on a pleasant activity. Students again time their procrastination for a week, and the time from this second week is the posttest measure.
-If the psychologist wants to see if there is a change (increase or decrease) in procrastination by 10 of the students who attended his workshop using the .05 significance level,the cutoff t score(s) would be

A) -.62,0,+2.62
B) +2.262
C) -2.262,0
D) -2.262,+2.262