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首页> 外文期刊>Current Journal of Applied Science and Technology >Effects of Computer Aided Design (CAD) inTeaching Electrical Drafting in Technical Colleges inRivers State of Nigeria
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Effects of Computer Aided Design (CAD) inTeaching Electrical Drafting in Technical Colleges inRivers State of Nigeria

机译：计算机辅助设计（CAD）在尼日利亚河流州技术学院的电气制图教学中的作用

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摘要

The study was on the effects of Computer Aided Design (CAD) in teaching electrical drafting in technical colleges in Rivers State of Nigeria. A Quasi-Experimental design was adopted for the study. The population of the study was 89 students comprised of all the vocational 1 students in the 5 technical colleges in Rivers State of Nigeria. A purposive sampling technique was used to select two technical colleges for the study of which simple sampling technique was used to select 20 students (10 boys and 10 girls) in each school. The total sample size was 40 students. Two intact classes of experimental and control groups in each college were used. Two parallel instrument of Pre-DAT and Post-DAT were developed, validated and reliability duly taken before using them to collect data. The research questions were answered using mean and standard deviation while the hypotheses were tested at P < 0.05 using Analysis of Covariance (ANCOVA). The result of the data analysis showed that, there was a significant difference between the experiment group and control group with the mean performance score of CAD group being more than the conventional group. There was no significant difference in the mean performance scores of male and female students taught using CAD. Based on the findings, some recommendations were made.
机译：这项研究的目的是研究计算机辅助设计（CAD）在尼日利亚里弗斯州技术学院教授电子制图的效果。该研究采用了拟实验设计。该研究的人口为89名学生，其中包括尼日利亚里弗斯州5所技术学院的全部1名职业学生。目的抽样技术用于选择两所技术学院，而简单抽样技术用于选择每所学校的20名学生（10名男孩和10名女孩）。样本总数为40名学生。每个学院使用了两个完整的实验组和对照组。在使用DAT之前和DAT收集数据之前，已经开发，验证了两种并行仪器，并进行了可靠性验证。使用均值和标准差回答研究问题，同时使用协方差分析（ANCOVA）在P <0.05检验假设。数据分析结果表明，实验组与对照组之间存在显着差异，CAD组的平均成绩得分高于常规组。使用CAD进行教学的男女学生的平均成绩得分没有显着差异。根据调查结果，提出了一些建议。

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