Regarding the reliability of questionnaires in language learning as a means of data collection method there is no
agreement. On one hand, some researcher believe that from among different data collection method such as interview,
think-aloud protocols or observations, question-naires can be cost-effective and allow the researchers and participants
to gain a rapid understanding of the participants' strategy use (Oxford and Burry-Stock, 1995; Bedell and Oxford, 1996;
McDonough, 1999). Further-more, they examine large samples of students, fairly easy as well as large number of
variables.