问题为导向的学习模式在核医学教学中应用效果的系统评价

Systematic Review in Problem-based Teaching Mode in Nuclear Medicine Courses

目的探讨以问题为导向的学习模式(Problem-based Learning,PBL)对于核医学的教学效果有无改善。方法联合检索国内外多个主要数据库与核医学PBL教学相关的研究,截至2019年6月30日。以标准化均数差(SMD)及其95%置信区间(95%CI)评价PBL教学模式对于核医学的教学效果是否优于传统教学模式,数据处理应用Stata15.0软件。结果依据纳入排除标准,共纳入11篇文献,PBL实验组496人,传统教学LBL组522人,共计1018人。随机效应合并分析结果显示,与传统教学方法相比,PBL组学生在核医学主要结局理论考核成绩效应值SMD=0.937,95%CI=0.652~1.223,次要结局指标实践技能考核成绩SMD=0.919,95%CI=0.156~1.682。结论PBL教学法一定程度上优于传统的LBL教学方式,有助于提高教学效果,值得在核医学教学中推广应用。

Objective To explore whether the problem-based learning(PBL)improves the learning effect of nuclear medicine.Methods A search of several databases related to nuclear medicine and PBL teaching end to June 30,2019.The effect of PBL teaching mode in nuclear medicine was evaluated by the standardized mean difference(SMD)and its 95%confidence interval(95% CI)using the data processing application Stata15.0 software.Results According to the inclusion/exclusion criteria,11 articles were included,containing 1 018 students,496 in the PBL experimental groups and 522 in the traditional teaching groups.Comprehensive analysis results showed that compared with the traditional teaching methods,the PBL group students in the nuclear medicine theoretical test score SMD =0.937,95% CI=0.652~1.223,practice test score SMD =0.919,95% CI=0.156~1.682.Conclusion The PBL teaching method improves the learning effect of nuclear medicine.And it is worthy to spread in nuclear medicine course.