When the results of a scientific observation are representative of real life, the results have internal validity

A report of research on physiological psychology contains a description of a substance that can influence communication among neurons and can act some distance from where the substance was released. What is the topic of this report?

a. axons b. humors c. neuromodulators d. neurotransmitters

Intruding thoughts that occur again and again are called _________. Repetitive, ritualistic behaviors are called________

a. intrusions; impulses b. obsessions; compulsions c. impulses; intrusions d. compulsions; obsessions e. neuroses; psychoses