01 January 1970 2 2K Report

Hi everyone

My research examines the effect of using videos on English idiom learning. So, it is regarded a scientific research which means that i should use tests as research instrument. However, i use also attitudinal questionnaire. Unfortunately, my supervisor said that it is not good to use questionnaire as i measure the effectiveness of something. So, could you please help me provide a reference that support the ability to use both instruments in such type of research.

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