Because thyroid disorders can cause changes in menstrual cycle and mood, the symptoms are sometimes mistaken for menopause. If a thyroid problem is suspected, a simple blood test can determine whether the true culprit is menopause or a thyroid disorder -- or a combination of the two.
In statistics, the standard score is the (signed) number of standard deviations an observation or datum is above the mean. Thus, a positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean.hus, a positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean.
Z-scores (standard scores) raw scores stated in standard deviation terms. a measure of how many standard deviations a given raw score is from the mean. A negative number (e.g. -1) means the score falls below the mean. 0 = the mean. shape of the distribution does not change when scores changed to z-scores (linear transformation)