Vaughn, S., Swanson, E., Roberts, G., Martinez, L., Wanzek, J., Simmons, D., Clemens, N., & Fogarty, M. (2021). PACT11 2011-2012. LDbase. http://ldbase.org/datasets/f0557ffc-b2cd-4a4e-a315-0a6d5ec562ea