In a psychological research study, a sample made up of those who happen to be available at the time of study is called a _______________ sample

Stimulus generalization gradients demonstrate that

a. human behavior is not very adaptive. b. the most important attribute of a CS is its intensity. c. less time is necessary to reacquire a response than to acquire it originally. d. the more similar a stimulus is to the original CS, the stronger a CR will be.

What percent of mitochondrial DNA is inherited from the mother:

a. it varies from individual to individual b. 100% of the child is female; 50% is the child is male c. 100% if the child is male; 50% if the child is female d. 100% for both male and female children