_____ discovered that the relative frequency of behaviors can be utilized to strengthen a target behavior

_____ is the ancient Chinese practice of inserting thin needles into more than 2,000 points in the body to alter energy forces

A) Acupressure B) Acupuncture C) Homeopathic medicine D) Chiropractic manipulation

In judging normality, social class is probably the most common source of bias

Indicate whether this statement is true or false.