An organized system of assumptions and principles that purports to explain a specified set of phenomena and their interrelationships is called a(n) _______________

a. hypothesis
b. operational definition
c. research design
d. theory

Answer: d

Psychology

You might also like to view...

Erikson's model is ________

Fill in the blank(s) with the appropriate word(s).

View
Psychology

All U.S. states require that each newborn be given a blood test for

A) cystic fibrosis. B) phenylketonuria (PKU). C) sickle cell anemia. D) Tay-Sachs disease.

View
Psychology