ارزشیابی سوالات شیمی کنکور سراسری رشته علوم تجربی در سال 1396 با استفاده از نظریه سوال–پاسخ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه شیمی، دانشکده علوم پایه، دانشگاه تربیت دبیر شهید رجایی، تهران، ایران

2 کارشناسی ارشد،گروه شیمی، دانشکده‌ی علوم پایه، دانشگاه تربیت دبیر شهید رجایی، تهران، ایران

3 دانشیار،گروه روانشناسی تربیتی، دانشگاه آزاداسلامی، سنندج، ایران.

10.22034/emes.2021.248201

چکیده

هدف: پژوهش حاضر به ارزشیابی سوالات شیمی کنکور سراسری گروه علوم تجربی در سال 1396 با استفاده از نظریه سوال-پاسخ می پردازذ.
روش پژوهش: پژوهش کاربردی، توصیفی- پیمایشی است. جامعه آماری کلیه داوطلبان کنکور سراسری گروه علوم تجربی در سال 1396 و نمونه آماری 5۰۰۰ پاسخنامه از میان پاسخنامه های داوطلبان شرکت کننده در این سال است و محاسبات با نرم افزارهایNOHARM ،  IRTPROو EXCEL انجام شده است.
یافته‌ها: براساس نظریه کلاسیک و سوال پاسخ، پارامترهای تک تک سوالات محاسبه شد. نتایج نشان داد 7 سوال هم با مدل یک پارامتری و هم دو پارامتری و 21 سوال با مدل سه پارارمتری برازش مناسبی نشان می دهند و 13 سوال نیز با هیچکدام از مدلهای نظریه سوال-پاسخ برازش نشان نمی دهند. تحلیل سوالات با مدل سه پارامتری نشان داد که 26 سوال از نظر ضریب تشخیص قوی(a>1.3)، 6 سوال متوسط و 3 سوال ضعیف (a<0.65)می باشد. همچنین از نظر دشواری 11 سوال بسیار سخت (b>1.2) و 24 سوال مناسب (-1.2<b<1.2) بودند. سوال c≥0.2  بود که بیانگر حدس پذیری بالای سوالات شیمی آزمون است.
نتیجه‌گیری: این آزمون 35 سوالی، دارای ضریب دشواری 3/0 و عامل حدس حدود 2/0 است و برای سطوح توانایی در گستره توانایی 5/0- تا 2 بیشترین آگاهی و کمترین خطا را دارد با توجه به فراوانی داوطلبان در این محدوده از توانایی، به نظر می رسد این آزمون توانایی لازم برای تشخیص  داوطلبان مختلف و انتخاب عادلانه آنها برای دانشگاه ها را داشته باشد. آلفای کرونباخ آزمون 934/0 و نشان دهنده پایایی عالی آزمون می باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of Chemistry Questions in Concur 2017 Using Item Response Theory

نویسندگان [English]

  • Ali Reza Karami Gazafi 1
  • Sara Mehrabi 2
  • Farzad Zandi 3
1 Assistant Professor, Department of Chemistry, Faculty of Basic Sciences, Tarbiat Dabir Shahid Rajaei University, Tehran, Iran
2 M.Sc, Department of Chemistry, Faculty of Basic Sciences, Tarbiat Dabir Shahid Rajaei University, Tehran, Iran
3 Associate Professor, Department of Educational Psychology, Islamic Azad University, Sanandaj, Iran.
چکیده [English]

Objective: The aim of this study is to evaluate the chemistry questions of university entrance exam (concur) in 2017 by using item-response theory.
Methods: This is an applied, descriptive research. 5,000 answer sheets of participants in Empirical Science group, were selected randomly as sample. All parameters were calculated with NOHARM and IRTPRO and EXCEL softwares.
Results: First the initial assumptions of IRT theory (unidimensionality and local Independence) were investigated. The parameters of each questions such as difficulty and discrimination coefficient, were calculated based on the classic and the item response theories. The results showed that 7 questions show a good fit with one and two parameter models and 21 questions are also compatible with three-parameter model and 13 questions don’t fit with any IRT models. The analysis with 3-PL-IRT showed the discrimination coefficient of 26 questions are strong (a> 1.3), 6 are moderate and 3 are weak (a <0.65). Also 11 questions were very difficult (b> 1.2) and 24 questions were appropriate (-1.2 Conclusion: The results showed that 3-PL IRT model has a better fit with the test. All questions are efficient in terms of discrimination coefficient and have a high level of difficulty and also guessing parameter is high in this test. The test’s questions have the highest Information and the least error for a high level of ability (range -1 to 2).

کلیدواژه‌ها [English]

  • Evaluation
  • University Entrance Exam
  • Chemistry Education
  • Classic Theory
  • item-response theory
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