Sampling is a technique where a field observation participant refers the researcher to other potential participants who, in turn, refers her or him to other potential participants

Even if the hypothesis cannot be directly observed, scientists still require that there be

a. empirical adequacy b. ontological directiveness. c. measurable phenomenalogical output. d. something to go on.

Socialization messages about drug and alcohol use come from

a. Family b. Peers c. Media d. Social institutions e. All of the above