农业科技论文篇幅与文摘字数的相关分析

Statistic Analysis on Word Number of Agricultural Thesis Abstract

从中国期刊全文数据库下载9种农林院校学报的农业类试验论文408篇。这些论文须由引言、材料与方法、结果分析和结论与讨论4部分组成,其文摘必须是报道性文摘。统计这些论文的篇幅(字数)及文摘的字数。利用SPSS软件分析论文篇幅和文摘字数的相关性。结果表明,农林院校学报论文文摘的平均字数为246.6字;论文篇幅与其文摘字数间存在显著或极显著的相关关系。不同中图分类号论文的回归模型表明,文摘字数随论文篇幅的变化率为0.021～0.044;408篇论文的篇幅(y)与文摘字数(x5)的回归方程为y = 118.074 611+0.030 092 x5,经检验,方程达极显著水平。根据回归方程,计算了置信度为0.05时不同篇幅论文的文摘字数的置信区间。

word number by SPSS showed that mean abstract word number is 246.6. There is evident relative between thesis length and abstract word number. Regression model showed that the variation of abstract word number was 0.021 ~ 0.044 with thesis length. The regression equation y=118.074 611+0.030 092 x5, test showed the equation had evident level. Based on equation, confidence interval of abstract word number was calculated when confident was 0.05.