For example, in a woman with a 21-day cycle, the follicular phase is likely seven days; in a woman with a 35-day cycle, the follicular phase is likely twenty-one days. (Note: It is possible for a luteal phase defect to shorten the length of the menstrual cycle â this will be discussed in a future article on Phase II.
The diatonic scales. The diatonic scale is most familiar as the major scale or the natural minor scale (or aeolian mode). The diatonic scale is a very important scale. Out of all the possible seven note scales it has the highest number of consonant intervals, and the greatest number of major and minor triads.he diatonic scale is a very important scale. Out of all the possible seven note scales it has the highest number of consonant intervals, and the greatest number of major and minor triads.
Ratio measurement scales. The last metric scale is called ratio measurement scales. Ratio along with interval scales affords the most precise data. With both there are equal intervals or units between any two consecutive numbers. The only difference between ratio and interval scales is the role of zero (0). In interval scales zero is artificial rather than real. IQ and standardized tests for performance assessment have a zero (0), but it is artificially created rather than real. In ratio scales, zero is real.