Correlation matrix for Maruyama & McGarvey (1980) data set
data(Cor.Mat.MM)Variables 1 through 13 in the correlation matrix are, respectively:
| Variables |
| (1) seating popularity |
| (2) playground popularity |
| (3) schoolwork popularity |
| (4) verbal achievement |
| (5) verbal grades |
| (6) Duncan SEI |
| (7) education of head of house |
| (8) No. of rooms over No. of persons |
| (9) Raven Progressive Matrices |
| (10) Peabody PVT |
| (11) father's evaluation |
| (12) mothers evaluation |
The model was designed to examine whether acceptance by significant others (i.e., parents, teachers, and peers) causes improved scholastic achievement. There are five latent variables in the model: (a) SES, socio-economic status; (b) ABL, academic ability; (c) ACH, achievement; (d) ASA, acceptance by significant adults; (e) APR, acceptance by peers.
SES is indicated by (a) SEI, Duncan Socioeconomic Index of Occupations; (b) EDHH, educational attainment of the head of the household; (c) R/P, ratio of rooms in the house to persons living in the house.
ACH is indicated by (a) VACH, standardized verbal test scores; (b) VGR, verbal grades.
ABL is indicated by (a) PEA, Peabody Picture Vocabulary Test; (b) RAV, Raven Progressive Matrices.
ASA is indicated by (a) FEV, father's evaluation; (b) MEV, mother's evaluation; (c) TEV, teacher's evaluation.
APR is indicated by (a) PPOP, playground popularity; (b) SPOP, seating popularity; (c) WPOP, schoolwork popularity.
Maruyama, G., & McGarvey, B. (1980). Evaluating causal models: An application of maximum-likelihood analysis of structural equations. Psychological Bulletin, 87 (3), 502--512.