Most developed Western countries set the age of 60 to 65 for retirement. Being 60â65 years old is usually a requirement for becoming eligible for senior social programs. However, various countries and societies consider the onset of old age as anywhere from the mid-40s to the 70s.
Ordinal Scale Measures in terms of such values as more or less, larger or. smaller, but without specifying the size of the intervals. Example: rating scales, ranking scales, Likert-type scales. Interval Scale Measures in terms of equal intervals or degrees of. difference but without a true zero point.
A general and important guideline is that the statistics based on one level of measurement. should not be used for a lower level, but can be used for a higher level. An implication of. this guideline is that data obtained from using a Likert-type scale (a scale in which people. set their preferences from say 1 = totally agree to 7 = totally disagree) should, generally, not be used in parametric tests.