Quietness by Amador T. Daguio

I am lovers of all quietness unechoed songs within a silent heart, a silver pon…

The Song of Maria Clara by Dr. Jose P. Rizal

Sweet the hours in the native country, where friendly shines the sun above! …

Kuder-Richardson Formula 21

K - number of items p - proportion of the examinees who got the item right q…

Kuder-Richardson Formula 20

WHERE: K - number of items p - proportion of the examinees who got the item…

Pearson's r Formula for Measures of Correlation

WHERE: X - scores in a test Y - scores in a retest N - number of examinees…

Ballad of A Mother's Heart