The spaces between words help us group letters together, so that GOT ROT means something different from GO TROT. Which of the Gestalt principles is at work here?

Forming a hypothesis is the second step in a scientific investigation. This step is derived from which goal of psychology?

a) describing b) explaining c) predicting d) changing

From toddlerhood through middle childhood, the development of math skills follows a path parallel to the development of ____ and ____

a. language; reading skills b. sensation; perception c. the preoperational stage; concrete operations d. hypothetical reasoning; deductive reasoning