Sets of principles that describe and predict events are known as

Sets of principles that describe and predict events are called theories.

Hypotheses are single testable predictions, much narrower than theories.

Concepts are abstract building blocks, not full explanatory systems.

Analysis is a process of examining data, not a set of principles.

A theory organises concepts and relationships into a coherent explanation.

Good theories are testable, parsimonious and have wide scope.