Equity in mathematics education in Hong Kong: evidence from TIMSS 2011 to 2019

Large-scale Assessments in Education

An IERI – International Educational Research Institute Journal

Table 6 Factor loadings from principal components analysis of family socio-economic status

Variable	PC1	PC2	PC3	PC4	PC5	PC6
PARED	0.485^†	− 0.335	0.369	− 0.041	− 0.183	− 0.693
DESK	0.485^†	0.056	− 0.492	− 0.017	0.708	− 0.136
BOOK	0.476^†	− 0.287	0.445	− 0.110	0.134	0.680
ROOM	0.465^†	0.027	− 0.546	0.109	− 0.661	0.190
INTERNET	0.186	0.668^†	0.156	− 0.696	− 0.097	− 0.043
COMPUTER	0.227	0.596^†	0.319	0.700	0.034	− 0.010

PARED: Parents’ highest education level; DESK: Study desk in the home; ROOM: Has own room in the home; BOOK: Number of books in the home; INTERNET: Has internet connection in the home; COMPUTER: Computer for study in the home
^†Factor loadings are greater than .400 in the first two principal components which have eigenvalue larger than 1