Secular Trend: Changes over a long period of time, generally years or decades
Lay beliefs represent an individual’s subjective and informal explanation for the world around them (including explanations relating to health and illness) that do not necessarily have to concur with scientific knowledge.
Five dimensions identified in cognitive perceptions of illness?
Identity
Cause
Timeline
Consequences
Controllability/curability
A hypothesis is an untested idea or assumption.
A theory provides an explanation for observations in data.