If we want to find whether the first year class at our college has higher scores on the SAT writing test than the national average for the test, we would compute ______.

Which approach emphasizes that we all learn better if we can choose among different ways of gaining knowledge?

a. Open Teaching b. Discovery Learning c. Problem-Based Learning d. Universal Design for Instruction

Imagine that you conducted a single-sample t test with 12 participants. For a two-tailed test, the tcv at a = 0.05 would be

a. ±1.796. b. ±2.074. c. ±2.179. d. ±2.201.