Cassandra Guarino

The purpose of this project is to explore the incidence and consequences of non-promotional student mobility and how it influences and interacts with student outcomes-achievement, behavior, social-emotional learning and other forms of development, such as language acquisition and disability status-for vulnerable populations in California. Non-promotional student mobility is defined as students changing schools either mid-year or from one year to the next in grades that do not correspond to t...

This project sought to improve value-added models by addressing two central issues involved in establishing the validity of inferences based on value-added models (VAMs). The first issue concerns the accuracy of measures of students' achievement growth. Educational tests that under-represent the full range of desired skills and knowledge, and that substantially shift emphasis on particular constructs from year to year, will underestimate students' growth in achievement and may lead to statis...