Question Four

Clearly distinguish between the following concepts:

a. Reliability and validity

b. Type 1 and type 2 errors

c. Accepting null hypothesis and failing to reject null hypothesis

d. Probabilistic and non-probabilistic sampling

e. Mediation and moderation effects

f. Theoretical and empirical frameworks

g. Conceptual and empirical frameworks

h. Operationalization of concepts and definition of concepts

i. Sample and sampling frame

j. Convenience and judgmental sampling