Which of the following has the largest state constitution?

Rational-Choice theory became popular among political scientists during what time period?

A) Prior to World War I B) Prior to World War II C) The 1950s D) The 1970s

Dr. Kaiser, a sports psychologist, wants to know if he can improve the cardiovascular endurance in elementary school children. He is allowed to study two physical education classes at a local school, one boys' class and one girls' class

On the pretest, the girls on average have slightly better cardiovascular endurance as measured on the step test. He administers the year-long aerobic program to the girls' class. The posttests revealed that the girls' cardiovascular endurance improved much more than the boys.' Dr. Kaiser must now decide if the program really worked or a. if there was a regression artifact. b. if there was a selection-maturation effect. c. if girls always do better in aerobic exercises. d. if there was an attrition effect.