Levels of measurement Flashcards

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1
Q

Definitions:

Nominal data

A

The level of measurement that shows categories of data represented by frequencies. The data sets have no relative numerical value e.g. boys and girls

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2
Q

Definitions:

Ordinal data

A

The level of measurement where data can be placed into ascending or descending order, but the intervals between data not necessarily equal e.g. the times for first, second and third in a race

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3
Q

Definitions:

Interval data

A

The level of measurement that has equal numerical intervals between scores e.g. temperature. The interval between 1 and 2 degrees is the same as between 21 and 22 degrees.

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4
Q

Definitions:

Ratio data

A

The level of measurement that has equal intervals between scores and has an absolute or true zero point e.g. speed (mph)

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5
Q

Explain one difference between quantitative and qualitative data

A

Quantitative data is easily analysed using statistical techniques, whereas qualitative data
needs to be turned into quantitative data before it is analysed with statistics

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