For a Person Who Has Smoked for Some Time and Has

question 8

Short Answer

For a person who has smoked for some time and has given up cigarettes, the risks of stroke and coronary heart disease return to normal after a period of ________________ year(s).

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Definitions:

Concurrent Validity

The degree to which the results of a particular test correlate with those of a previously established test or measure, assessed at the same time.

Discriminant Validity

The extent to which a measure does not correlate with other variables from which it is theoretically supposed to differ.

Interval Scale

A scale of measurement in which the intervals between numbers on the scale are all equal in size.

Ratio Scales

A type of measurement scale that has a true zero point and equal intervals, allowing for the comparison of absolute magnitudes of the numbers.