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首页> 外文期刊>Advanced Science Letters >Validity and Reliability of the Construct of Knowlegde in Competency Instrument for Lecturers in Institut Pendidikan Guru Malaysia Using Rasch Measurement Model
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Validity and Reliability of the Construct of Knowlegde in Competency Instrument for Lecturers in Institut Pendidikan Guru Malaysia Using Rasch Measurement Model

机译：利用RASCH测量模型，Mendidikan Guru Malaysia在Institut Pendidikan Guru Malaysia的讲师构建的有效性和可靠性

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摘要

Validity and reliability of an instrument determines the score consistency in each item which means that the items used to measure the same construct in the instrument will produce similar score in different occasions. The propose of this study is to examine the validity and reliabilityof the construct of knowledge in the IPGM Lecturers’ Compentency instrument. The knowledge construct has four (4) dimensions; subject knowledge, pedagogical knowledge, assessment knowledge and supervisory knowledge. Rasch Measurement Model was utilized in order to examine the validityand reliability using Winsteps. The instrument was analyzed from the aspects of validity, reliability, item separation index, item polarity, principal component analysis and differential item functioning based on gender. The respondents in this study involved lecturers of Institut PendidikanGuru Malaysia (IPGM) in Malaysia. The respondents were chosen using Multistage Sampling. Based on the analysis, the instrument has reliability of 0.99 and item separation index of 9.14. It also has a positive PT-Measure Corr for all items and also raw variance explained by measure of 41.4%.This means that the items in the instrument can be used to measure the construct of knowledge and has fulfilled the pyschometric’s requirement to develop an instrument.
机译：仪器的有效性和可靠性决定了每个项目中的得分一致性，这意味着用于测量仪器中相同构建体的物品将在不同场合产生类似的分数。本研究的建议是研究IPGM讲师的合作仪器中知识构建的有效性和可靠性。知识构建体有四（4）个尺寸;主题知识，教学知识，评估知识和监督知识。利用RASCH测量模型来使用WINSteps检查有效性和可靠性。根据基于性别的有效性，可靠性，项目分离指标，项目极性，主成分分析和差分项目运作的方面，分析了仪器。这项研究中的受访者涉及马来西亚Institut Pendidkanguru马来西亚（IPGM）的讲师。使用多级抽样选择受访者。基于分析，仪器具有0.99的可靠性，项目分离指数为9.14。它还具有阳性PT-METION COR的所有物品，并且通过测量解释的原始方差41.4％。这意味着仪器中的物品可用于衡量知识的构建，并满足了脓液表的开发仪器要求。

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