@article{guskey_does_2002, title = {Does it make a difference? {Evaluating} professional development}, volume = {59}, url = {http://emsyh.org.uk/assets/Uploads/Does-It-Make-a-Difference-Guskey-2002-1.pdf}, abstract = {Using five critical levels of evaluation, you can improve your school's professional development program. But be sure to start with the desired result—improved student outcomes.}, language = {en}, number = {6}, journal = {Education Leadership}, author = {Guskey, Thomas R}, month = mar, year = {2002}, note = {KerkoCite.ItemAlsoKnownAs: 2405685:MK5KQJTQ 2534378:NNITJUR2}, keywords = {\_\_\_working\_potential\_duplicate, auto\_merged, ⛔ No DOI found}, pages = {45--51}, }