Question

Nominal -- Is THIS different than THAT?

¤Ordinal -- Is THIS bigger than THAT?

¤Interval -- What are the QUANTITATIVE differences?

¤Ratio -- How many time bigger is THIS from THAT?

Provide three health care-focused examples of each type of variable: Nominal, Ordinal, Interval, Ratio.

Answer 1

Nominal -- Is THIS different than THAT?

Nominal comes from the name,The factors estimated on the ostensible scales. There is no proportion of separation between the qualities. These are portrayed by the factors that are noncontinuous and discrete.

Model

• sex: Male, female
• Conjugal status: Married , unmarried
• Blood group:A, B, AB, O
• Genotype : Bb,bb,BB,bB
• pregnancy status : pregnant not pregnant
• health state : sick,well

Ordinal -- Is THIS bigger than THAT?

These are estimation that are ordered by factors that are surveyed steadily. You can have higher and bring down sums, not exactly and more noteworthy than terms with ordinal factors

Example :

• Rank the stage of cancer : Higher , lower
• pain status: slight moderate, intense
• exercise status:often, sometimes, never

Interval -- What are the QUANTITATIVE differences?

It has the property that vary in the number speaks to the genuine distinction in the variable, This variable is portrayed by the scale that is quantitative in nature. Addition in the scale is quantifiable and furthermore it is equidistant. Temperature measure regarding number of degrees.

Examples:

• Celsius Temperature.
• Fahrenheit Temperature.
• IQ (intelligence scale).

Ratio -- How many time bigger is THIS from THAT?

It has every one of the properties of interim variable and expansion genuine outright zero. That implies the estimation of zero shows the aggregate nonattendance of variable being estimated.

Precedents:

• Time estimated in a moment or two, minutes, hour
• pulse estimated in millimeters of mercury
• age
• weight
• height

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