Harvard University. Preschool Project

• Environment use scale
• Manual for abstract ability tests
• Manual for assessing the discriminative ability of one-to-three-year-old children
• Manual for environment use scale
• Manual for Mother-Child Interaction Scale
• Manual for testing language ability of 1 to 3-year-old children
• Preliminary manual for quantitative analysis of tasks of 1-to 6-year old children