A bias that occurs because people who feel strongly about a subject are more likely to respond to survey questions than people who feel indifferent about it is referred to as: Select one: • self-selection bias • extremity bias • auspices bias • social desirability bias Validity refers to: Select one: • the ability to accurately measure variability in responses. • the degree to which measures yield consistent results. • the ability of a scale to measure what was intended to be measured. • a composite measure of several variables used to measure a single concept.