Application and evaluation of the S-P chart in analyzing examination papers of nutrition and food hygiene
10.3760/cma.j.issn.2095-1485.2018.04.002
- VernacularTitle:S-P表在营养与食品卫生学试卷分析中的应用与评价
- Author:
Wei MI
1
;
Qi WANG
;
Wu LIAN
;
Tala SHI
;
Weijie YI
Author Information
1. 滨州医学院公共卫生与管理学院
- Keywords:
S-P chart;
Nutrition and food hygiene;
Examination paper analysis;
Effectiveness evaluation
- From:
Chinese Journal of Medical Education Research
2018;17(4):329-335
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application and evaluation of S-P chart in analyzing examination papers of nutrition and food hygiene and improve the quality of examination.Methods 15 papers were randomly selected from 56 examination papers of nutrition and food hygiene and 5,4,5,1,0 were randomly selected from the students with scores of ＜60,60-69,70-79,80-89,and 90-100 with stratified samplingmethod.S-P chart and fuzzy S-P chart were drawn according to objective and subjective questions.Results In the S-P chart of multiple choice,both the P-curve and S-curve were in the lower right corner.There was no obvious fault on the S-curve,while P-curve had obvious faults.There were 2 questions and 1 student with alarm coefficient ＞ 0.75.The difference,difficulty coefficient,stability coefficient and suitability coefficient were 0.13,0.66,0.55 and 0.58 respectively.In the S-P chart of multiple choices,both the P-curve and S-curve were in the upper left corner.There was no obvious fault on the S-curve,while P-curve had obvious faults.There were 1 question and 1 student with alarm coefficient ＞ 0.75.The difference,difficulty coefficient,stability coefficient and suitability coefficient were 0.10,0.30,0.64 and 0.60 respectively.In the S-P chart of subjective questions,the difference was 0.275,and both the P-curve and S-curve were in the upper left corner and had no obvious fault.Conclusion The application of S-P chart can help teachers to analyze the difference between the quality of test questions and the grade of students,thereby making teaching more targeted and improving the quality of teaching and examination.
