Fragile X syndrome is the most common genetic disorder associated with ______

A system that returns a part of the output signal to the control device for the purposes of "fine tuning" behaviors is said to be a

A) holographic system. B) wet system. C) feedback system. D) organ system.

The extent to which an instrument measures the construct it is intended to is called _______.

a. consistency b. objectivity c. reliability d. validity