| The reliability and validity of the Outcome Questionnaire MJ Lambert, GM Burlingame, V Umphress, NB Hansen, DA Vermeersch, ... Clinical Psychology & Psychotherapy: An International Journal of Theory and …, 1996 | 1525 | 1996 |
| Administration and scoring manual for the Outcome Questionnaire (OQ-45.2) MJ Lambert, NB Hansen, V Umphress, K Lunnen, J Okiishi, ... Wilmington, DE: American Professional Credentialing Services 35, 1996 | 1037 | 1996 |
| Administration and scoring manual for the OQ-45.2 MJ Lambert, NB Hansen, V Umpress, K Lunnen, J Okiishi, ... Stevenson, MD: American Professional Credentialing Services, 50-80, 1996 | 860 | 1996 |
| Cohesion in group therapy. GM Burlingame, DT McClendon, J Alonso Psychotherapy 48 (1), 34, 2011 | 781* | 2011 |
| Small group treatment: Evidence for effectiveness and mechanisms of change GM Burlingame, KR MacKenzie, B Strauss Handbook of psychotherapy and behavior change 5, 647-696, 2004 | 702 | 2004 |
| The Outcome Questionnaire-45. MJ Lambert, AT Gregersen, GM Burlingame Lawrence Erlbaum Associates Publishers, 2004 | 561 | 2004 |
| Cohesion in group psychotherapy. GM Burlingame, A Fuhriman, JE Johnson Psychotherapy: Theory, Research, Practice, Training 38 (4), 373, 2001 | 520 | 2001 |
| The differential effectiveness of group psychotherapy: A meta-analytic perspective. GM Burlingame, A Fuhriman, J Mosier Group dynamics: Theory, research, and practice 7 (1), 3, 2003 | 507 | 2003 |
| Comparative efficacy of individual and group psychotherapy: A meta-analytic perspective. C McRoberts, GM Burlingame, MJ Hoag Group dynamics: Theory, research, and practice 2 (2), 101, 1998 | 504 | 1998 |
| Effectiveness of a school-based group psychotherapy program for war-exposed adolescents: A randomized controlled trial CM Layne, WR Saltzman, L Poppleton, GM Burlingame, A Pašalić, ... Journal of the American Academy of Child & Adolescent Psychiatry 47 (9 …, 2008 | 455 | 2008 |
| Group climate, cohesion, alliance, and empathy in group psychotherapy: Multilevel structural equation models. JE Johnson, GM Burlingame, JA Olsen, DR Davies, RL Gleave Journal of counseling psychology 52 (3), 310, 2005 | 443 | 2005 |
| Outcome questionnaire: Item sensitivity to change DA Vermeersch, MJ Lambert, GM Burlingame Journal of Personality Assessment 74 (2), 242-261, 2000 | 389 | 2000 |
| Change mechanisms and effectiveness of small group treatments GM Burlingame, B Strauss, A Joyce Bergin and Garfield’s handbook of psychotherapy and behavior change 6, 640-689, 2013 | 387 | 2013 |
| Evaluating the effectiveness of child and adolescent group treatment: A meta-analytic review MJ Hoag, GM Burlingame Journal of Clinical Child Psychology 26 (3), 234-246, 1997 | 360 | 1997 |
| Administration and scoring manual for the OQ-45.2 (Outcome Questionnaire) MJ Lambert, JJ Morton, DR Hatfield, C Harmon, S Hamilton, RC Reid, ... Orem, UT: American Professional Credentialing Services, 2004 | 304 | 2004 |
| Youth psychotherapy change trajectories and outcomes in usual care: Community mental health versus managed care settings. JS Warren, PL Nelson, SA Mondragon, SA Baldwin, GM Burlingame Journal of Consulting and Clinical Psychology 78 (2), 144, 2010 | 292 | 2010 |
| Assessing clinical significance: Proposed extensions to method R Tingey, M Lambert, G Burlingame, N Hansen Psychotherapy Research 6 (2), 109-123, 1996 | 289 | 1996 |
| Clinical practice guidelines for group psychotherapy H Bernard, G Burlingame, P Flores, L Greene, A Joyce, JC Kobos, ... International journal of group psychotherapy 58 (4), 455-542, 2008 | 287 | 2008 |
| Conceptualization and measurement of patient change during psychotherapy: Development of the Outcome Questionnaire and Youth Outcome Questionnaire. MG Wells, GM Burlingame, MJ Lambert, MJ Hoag, CA Hope Psychotherapy: Theory, Research, Practice, Training 33 (2), 275, 1996 | 257 | 1996 |
| Construct validity of the Outcome Questionnaire: A confirmatory factor analysis RM Mueller, MJ Lambert, GM Burlingame Journal of Personality Assessment 70 (2), 248-262, 1998 | 254 | 1998 |
