An experiment was conducted in 1919 , where a standardization method of testing was tried . An experiment was done in 1919 where a standardization method of testing was tried .
Satu eksperimen telah dijalankan pada tahun 1919, di mana kaedah standardisasi ujian telah dicuba. Satu eksperimen telah dilakukan pada tahun 1919 di mana kaedah standardisasi ujian telah dicuba.