Hello everyone
I did the validity and reliability for my recache's instruments. WWith regard to validity, the instruments( tests and questionnaire) were subject to a serious of pilot study. First, they were given to non native English speaking, then to native speakers to to ensure that the items were not too easy or too difficult, to iron out any ambiguous items and to improve the clarity of the item wordings and the instructions. After that, another pilot test was carried out with a sample of 14 participants who were similar to the target group.
With regard to reliability, SPSS, pearson correlation coefficient was used to check the students' scores between two raters as tests were fill in the blanks. Also, cronbach's alpha reliability was used to check the reliability of the questionnaire.
My question is that should I mention all details particularly the reliability?
Regards,
Validity of instrument can be done physically like taking experts opinion for example content validity etc but reliability can be ascertained only using statistical tools such as SPSS yes for new research tools you have to do validity and reliability after pilot usually 10% of final study sample. Hope this help you. Best of luck for yours research
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