SIQA Psychometric Information

A Principal Components Analysis with Varimax rotation yielded a 9-factor solution, supporting the factor structure posited a priori. The 9-factor solution accounted for more than 75% of the variance. Loadings on the factors ranged from very good .63 to excellent .86. Internal consistency reliabilities for the factors are excellent, ranging from .91 to .97. (See Table 1 for details.)

Table 1.School Implementation Variables with Internal Consistency Reliabilities

Variable Name

Items

Cronbach’s Alpha

Comprehensive School Plan Effectiveness

Section II: 2a to 2k and 4

.96

SPMT Effectiveness

Section III: 3a to 3h and 4

.96

SPMT Practice of SDP Guiding Principles

Section III, 5: SM1 to SM5

.94

SSST Effectiveness

Section IV: 3a to 3e and 4

.96

SSST Practice of SDP Guiding Principles

Section IV: ST1 to ST5

.96

Parent Team Effectiveness

Section V: 3a to 3f and 4

.96

Parent Team Practice of SDP Guiding Principles

Section V: PT1 to PT5

.97

Inclusiveness

Section VI: 1 to 6

.91

Curriculum Developmental Focus

Section VII: 2 to 7

.91