Training programs for the mentally retarded have proven relatively effective in making it possible for some retarded individuals to function in society. These types of programs generally rely on __________

The force with which air molecules move determines _____, which is measured in units of _____ as _____

a) loudness; decibels; amplitude. b) frequency; hertz; timbre. c) timbre; vibrations; amplitude. d) saturation; frequencies; hertz.

REM would be considered to be a:

a. construct. b. product of synesthesia. c. marker variable. d. theory.