Comparison of achievement test scores of students (N = 69).

Table 2: Comparison of achievement test scores of students (N = 69).

Comparison of Success Test Scores and Scale Scores	Study Group (N = 34)			Control Group (N = 35)					Statistical Evaluation
	Hydrangea Min; Maks	Mean ± SD		Hydrangea Min; Maks	Mean ± SD				Z	p
Successful Test
Pre Test	25^A,B 15; 45	26.8 ± 7.7		35^A,B 20; 55	34.6 ± 9.4				3.375	< 0.001
Post Test	62.5^A 30; 80	58.8 ± 14.9		70^A 20; 100	65.1 ± 17.6				1.734	0.083
Retention Test	67.5^B 20; 80	61.5 ± 15.9		65^B 30; 85	63.3 ± 13.7				0.285	0.776
Statistical Evaluation	χ² = 47.145; P < 0.001			χ² = 42.493; P < 0.001
Covariance of Post Test Score	Sum Of Squares		Df	Mean Square			F(Anova)	p
Total	284000		69
Pretest Total Score	36.8		1	36.8			2.581	0.713
Intergroups	695.7		1	695.7			0.136	0.113
Covariance of Retention Test Score	Sum Of Squares		Df	Mean Square		F(Anova)		P
Total	283375		69
Pretest Total Score	75.2		1	75.2		0.339		0.562
Intergroups	10.4		1	10.4		0.047		0.829

Changes of skill Points of Students

Study Group

Control Group

Statistical Evaluation

Hydrangea

Min; Maks

Mean ± SD

Hydrangea

Min; Maks

Mean ± SD

Skill Score

80.0

76; 92

82.9 ± 6.4

68.0

36; 84

66.9 ± 15.4

2.169

0.038