Development Of A Tool For Measuring Junior Middle School Students’ Interest In Chemistry Learning

Interest is the driving force for the formation of students’ core qualities,and the measurement of students’ interest is the guarantee of cultivating students’ core quality,At present,there are few studies on chemical learning interest measurement tools based on Item Response Theory in China,and most of the existing literature is using Classical Testing Theory to test measurement tools,Classical Testing Theory has the disadvantages of sample dependence and item dependence,Item Response Theory can effectively overcome the above shortcomings of the Classical Testing Theory,Rasch model is a special model of the single parameter Item Response Theory.Therefore,this study is based psychology on the Four-stage Theory of Interest Development,starting from the four stages of stimulating situational interest,maintaining situational interest,initial individual interest and stable individual interest.A measurement tool for junior high school students’ interest in chemistry learning is developed based on the Rasch model.This research realizes the isometric measurement of interest,and studies the option classification of the developed measurement tool,which effectively improves the reliability of the measurement tool.After the measurement tool has been developed,select the students in the middle level of four schools for the preliminary testing;Winsteps software is used to process and analyze the data collected from the preliminary testing.Delete or change unfit items,add items of corresponding level,and form new measurement tool;Student samples are selected again and the new measurement tool is used for retesting.The Rasch model is used to test the reliability and validity of the measurement tool.The analysis is mainly carried out from the aspects of one-dimension,White map,probability curve,item fitting and error.In the final test,the overall Infit MNSQ value of the measurement tool is 1.00,the Infit ZSTD value is-0.4,the Outfit MNSQ value is 1.00,and the Outfit ZSTD value is-0.4,both relatively close to the ideal level.The analysis of the White map reveals that the distribution of the 24 items is relatively comprehensive and could basically cover students with different levels of chemistry learning interests.Ultimately,the experimental results indicate that the reliability and validity of the measurement instruments developed in this study are good.