need help....questionnaire issue

[EmanO]

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Hello Guys,
I want to know is it ok if i used a questionnaire which has been used in previous published researches???
and if ok, how i can get the full questionnaire from the authors?

Thank you....

 

[AlbinoHawk DO]

If you give credit, why not? Contact the group directly for their materials.

 

[EmanO]

If you give credit, why not? Contact the group directly for their materials.

Thank you for your replay.