T.L. Kelley (1939) demonstrated emp

T.L. Kelley (1939) demonstrated empirically that when the response of the individuals in the upper 27 per cent was compared with the response of the individuals in the lower 27 per cent, the ratio of the difference between the means of the two groups over a probable error of the difference between the means was maximum.

Hasil (Bahasa Indonesia) 1:

T.L. Kelley (1939) secara empiris menunjukkan bahwa ketika respon dari orang-orang di atas 27 persen dibandingkan dengan respon dari individu-individu di bawah 27 persen, rasio perbedaan antara sarana dua kelompok atas kemungkinan kesalahan perbedaan antara sarana adalah maksimum.