The Research Office of the National Institute for Direct Instruction (NIFDI) recently compiled a bibliography of research related to Direct Instruction. Because the corpus of work regarding DI is so broad, we have likely missed important and relevant materials. Thus we are asking scholars in the field to check their listings in the material to make sure it is correct. Please also let us know about studies that are missing, errors in classification, or any other changes you think would be appropriate. You may find the bibliography pdf here and can send us feedback at research@nifdi.org.