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Subject 2. Measurement Scales 3;
For example, if anxiety was measured on an interval scale, a difference between a score of 10 and a score of 11 would represent the same difference in anxiety as the difference between a score of 50 and a score of 51.
<span>Interval scales do not have a "true" zero point. Therefore, it is not possible to make statements about how many times higher one score is than another. For the anxiety example, it would not be valid to say that a person with a score
last interval [days]
repetition number in this series
scheduled repetition interval
last repetition or drill
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