Two types of naturalistic language assessments would be __________ and __________

Most studies show that only ___________ of college students and adults achieve formal operational thinking completely

a. 5% to 10% c. 20% to 40% b. 10% to 20% d. 40% to 60%

At what age does the "settling" process generally begin with regard to height?

a) 35 b) 45 c) 55 d) 65