Questionnaire for Constructing Proof at Mathematics Course: Study of the Reliability and Validity

Proofs obtain whether a mathematical process is true or false. For this reason the purpose of this study is to develop “Questionnaire for Constructing Mathematical Proof” for preservice mathematics teachers. For this aim, totally 32 scale items and 3 open-ended questions were prepared by reviewing relevant literature by researcher. Later, this scale was conducted in 187 preserevice teachers who were at 1, 2, 3 and 4th grade in Karadeniz Technical University Fatih Faculty of Education. At the end of this application, it was put to use answers of 187 preservice teachers and 27 items were selected. KMO value of this scale is .712, Barlett test significance value was .000, Cronbach- alpha value was .79. This value has been rather good.