@misc{indiciae0666e5d82199, title = {Pretest-posttest comparison group designs: analysis and interpretation.}, author = {Jeffery A Gliner and George A Morgan and Robert J Harmon}, year = {2003}, doi = {10.1097/01.chi.0000046809.95464.be}, url = {https://pubmed.ncbi.nlm.nih.gov/12649639/}, note = {Source identifier: 12649639} }