Instruments of Data Collection
The questionnaire was the main instrument for collecting data from teachers. It consisted of both closed
and open questions. Questionnaires were adopted for these reasons:
(1) They are convenient for collecting datafrom a large sample with a short-time;
(2) They give the respondents freedom to give frank answers to sensitive questions especially, if they are
not asked to disclose their names;
(3) Respondents can answer questions during their free time.