Running Head: CAPITAL AND ACHIEVMENT A Capital Investment: The Effects of Teacher Human and Social Capital on Student Achievement in Improving Schools Alan J. Daly University of California, San Diego Nienke Moolenaar University of California, San Diego University of Twente Claudia Der-Martirosian University of California, San Diego Esther T. Canrinus University of Groningen Janet H. Chrispeels University of California, San Diego UNDER REVIEW SCHOOL IMPROVEMENT AND SCHOOL EFFECTIVENESS Contact Information: Alan J. Daly University of California, San Diego ajdaly@ucsd.edu 805.252.7819