In something less than ___ of cases, Parkinson's disease is ___ meaning that it occurs more frequently among relatives of a person with the disease

Abe has an IQ of 60 with both his older brother and sister also being diagnosed with mild intellectual disabilities. Abe and his siblings come from a very poor household where nutrition, intellectual stimulation, medical care, and emotional support are inadequate. Abe and his siblings most likely have intellectual disabilities that have a(n) __________ cause

a. organic b. metabolic c. familial d. teratogenic

What older model of psychology did Ivan Pavlov’s discovery of classical conditioning re-energize?

a. Wundt’s theoretical system of voluntarism b. Associative models derived from British empiricist philosophy c. Titchener’s version of structuralism d. Behaviorist models including those of Watson and Skinner