Balanced design, 51, 91, 93, 95, 96

Completely-crossed, 49, 51, 54, 89

CTB / McGraw-Hill–TerraNova, 8, 29, 31, 40–42, 44–46, 88, 182

Digital Divide, 2, 12, 15, 16, 23, 35, 37, 90, 182, 184

eSPARC, 12

Gaming, 2

General Linear Model (GLM), 49, 50

GUID, 8, 33

Hispanic, 36, 46, 181

Homoscedasticity, 55, 65, 66, 78–81, 86

No Child Left Behind Act, 12

Normal Curve Equivalent (NCE), 8, 30, 40

Normality, 55, 66

Quasi-experimental, 6, 39, 41, 42, 56, 96

Random assignment, 55, 56, 91, 93

San Miguel GEARUP partnership, 5–9, 27, 29, 31–33, 40, 44, 47

Schield, Milo, 3, 4, 38, 92, 183

Simpson’s Paradox, 3

Socioeconomic-status (SES), 34–37, 183

Spurious association, 3, 37, 38, 92

Three-way factorial Anova, 39, 41