[Retracted] The Innovative Trend of Piano Teaching in Music Education in Multicultural Education under Ecological Environment

Table 9

Comparison of pretest and posttest differences in music scores of students in experimental class.

	Before and after the experiment	N	M	Sd	T		Significance
Score	Before experiment	48	59.14	19.95	−2.511	0.012
	After the experiment	48	68.56	18.61