id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
bece-673	Cao, Lei	Effects of Problem-based Learning on Student Problem-solving Skills	2022	2	.pdf	application/pdf	633	24	46	Detailed analyses: As students at different education levels have different cognitive char- acteristics, this study analyzes four groups of students from elementary school, junior secondary school, senior secondary school, and university, and finds that the combined effect size is 0.47, 0.84, 1.27, and 0.45 for elemen- tary school, junior secondary school, senior secondary school, and university students respectively. Problem- based learning has a positive effect on student’s problem-solving skills in all the three periods.	cache/bece-673.pdf	txt/bece-673.txt