Statistical techniques that may be used on interval scale data include all of those that can be applied to nominal,ordinal,and ratio data.

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Quizplus · Accepted Answer

Statistical techniques applicable to interval scale data can indeed be used on ratio scale data because both have a meaningful order and equal intervals between values. However, not all techniques suitable for interval and ratio data are applicable to nominal and ordinal data, as these latter two scales do not necessarily have equal intervals or a true zero point, which are required for many statistical calculations.

Statistical Techniques That May Be Used on Interval Scale Data