Table 5. Results of Chi-square analysis concerning “perception of reconstruction”.

		NP group	P group
Cluster 1	Frequency	77(68.8%)	35(31.3%)
	Standardized residue	-1.1	2.0
Cluster 2	Frequency	294(84.5%)	54(15.5%)
	Standardized residue	1.4	-2.7
Cluster 3	Frequency	58(72.5%)	22(27.5%)
	Standardized residue	-0.5	1.0
Cluster 4	Frequency	136(76.4%)	42(23.6%)
	Standardized residue	-0.2	0.4
Cluster 5	Frequency	149(73.8%)	53(26.2%)
	Standardized residue	-0.6	1.2
Cluster 6	Frequency	37(84.1%)	7(15.9%)
	Standardized residue	0.5	-0.9
Cluster 7	Frequency	26(72.2%)	10(27.8%)
	Standardized residue	-0.4	0.7

χ2 = 19.3(df = 6, p < .01). Bold letters indicate p < .05.