Abnormality Flashcards
What is meant by validity?
Degree to which the measurement is measuring the thing we intend to measure
What are the three different types of validity?
Consent validity
Construct validity
Criterion validity
What is meant by consent validity?
Degree to which the measurement includes all dimensions of the theoretical concept
What is meant by construct validity?
Degree to which measurement corresponds to other measures of the construct
What is meant by criterion validity?
Degree to which measurements correlates with external criterion
What is is needed for something to be reliable?
Reproductability of results on repeated measurement
Numerical test-retest duplicate meaures
Intra-observer agreement
Categorical inter-observer agreement
What is meant by regression dilution bias?
Regression towards the mean
Only measure risk factor once and does not account for all random error
Define disease
A disorder that is assigned to a diagnostic category
Define disorder
A disturbance or departure from ‘normal’ function
Define syndrome
Group of symptoms and signs that tend to appear together, and collectively characterise a disorder
What is meant by specified population?
A denominator of groups of people with epidemiological dimensions
Time
Place
Person