Unit 1 61-70

Question 1

Representative sampling

Answer 1

The selection of study units (participants, homes, schools) from a larger group (population) in an unbiased way, such that the sample obtained accurately reflects the total population

Question 2

Convenience sampling

Answer 2

Any process for selecting a sample of individuals or cases that is neither random nor systematic but rather is governed by chance or ready availability

Question 3

Sampling

Answer 3

The process of selecting for study a limited number of units from a larger set of

Question 4

Generalizability

Answer 4

The extent to which results or findings obtained from a sample are applicable to a broader population

Question 5

Placebo

Answer 5

Something which has a positive mental effect, but no physical effect

Question 6

Variance

Answer 6

A measure of the spread, or dispersion, of scores within a sample or population, whereby a small variance indicates highly similar scores, all close to the sample mean, and a large variance indicates more scores at a greater distance from the mean and possibly over a larger range

Question 7

Demand characteristics

Answer 7

In an experiment or research project, cues that may influence or bias participants’ behavior, for example, by suggesting the outcome or response that the experiment expects or Desires

Question 8

Likert Scale

Answer 8

A type of direct attitude measure that consists of statements reflecting strong positive or negative evaluations of an object

Question 9

Deception

Answer 9

Any distortion of or withholding of fact with the purpose of misleading others