Auster, E. R., Feeny-Kettler, K. A., & Kratochwill, T, R. (2006). Conjoint behavioral consultation: Application to the school-based treatment of anxiety disorders. Education and Treatment of Children, 9, 243-256. Retrieved from https://www.jstor.org/stable/42899884

Bellinger, S. A., Lee, S. W., Jamison, T. R., & Reese, R. M. (2016). Conjoint Behavioral Consultation: Community-school collaboration and behavioral outcomes using multiple baseline. Journal of Educational and Psychological Consultation, 26, 139-165. https://doi.org/10.1080/10474412.2015.1089405

Brown, M. S. (2004). Effects of early childhood-Conjoint Behavioral Consultation (EC-CBC) on preschool child compliance. Dissertation Abstracts International, 65(08), 2894A. https://digitalcommons.unl.edu/dissertations/AAI3142072/

Burt, J. D., Clarke, B. L., Dowd-Eagle, S., & Sheridan, S. M. (2008). Conjoint Behavioral Consultation in unique practice contexts. In S. M. Sheridan & T. R. Kratochwill, Conjoint Behavioral Consultation: Promoting Family-School Connections and Interventions – 2nd Edition (pp. 97-127). New York: Springer. https://doi.org/10.1007/978-0-387-71248-2

Cagle, M. L. (2003). Conjoint behavioral consultation with parents and teachers of Hispanic children: A study of acceptability, integrity, and effectiveness. Dissertation Abstracts International, 64(02), 394A.

Cheng, K. C., Witte, A. L., Wheeler, L. A., Sheridan, S. M., Gormley, M. J., Chen, D., & Eastberg, S.R.A. (2022). Examining long-term intervention effects to promote teacher problem-solving and communication skills in the rural context. School Psychology, 37 (5), 378-387. https://doi.org/10.1037/spq0000512

Christenson, S. L. & Sheridan, S. M. (2001). Schools and families: Creating essential connections for learning. New York: Guilford Press. https://doi.org/10.1002/pits.10101

Clarke, B. L., Sheridan, S. M., & Woods, K. L. (2009). Elements of healthy family-school relationships. In S. Christenson & A. Reschly (Eds.), Handbook of school-family partnerships (pp. 61-79). New York: Routledge.

Clarke, B. L., Sheridan, S. M., & Woods, K. E. (2014). Conjoint behavioral consultation: Implementing a tiered home-school partnership model to promote school readiness. Journal of Prevention and Intervention in the Community, 42, 300-314. https://doi.org/10.1080/10852352.2014.943636

Clarke, B. L., Wheeler, L. A., Sheridan, S. M., Sommerhalder, M. S., & Witte, A. L. (2017). Supporting Latinx student success via family–school partnerships: Preliminary effects of conjoint behavioral consultation on student and parent outcomes. Journal of Educational & Psychological Consultation, 27(3), 317–343. https://doi.org/10.1080/10474412.2017.1293543

Collier-Meek, M. A. & Sanetti, L. H. (2014). Assessment of consultation and intervention implementation: A review of conjoint behavioral consultation studies. Journal of Educational and Psychological Consultation, 24(1), 55-73. https://doi.org/10.1080/10474412.2014.870482

Colton, D. L & Sheridan, S. M. (1998). Conjoint behavioral consultation and social skills training: Enhancing the play behavior of boys with attention deficit hyperactivity disorder. Journal of Educational and Psychological Consultation, 9, 3-28. http://digitalcommons.unl.edu/edpsychpapers/10/

Cowan, R. J. & Sheridan, S. M. (2003). Investigating the acceptability of behavioral interventions in applied conjoint behavioral consultation: Moving from analog conditions to naturalistic settings. School Psychology Quarterly, 18, 1-21. http://digitalcommons.unl.edu/edpsychpapers/13/

Eagle, J. W. & Sheridan, S. M. (2005). Consultant: Conjoint behavioral. In S. W. Lee (Eds.), Encyclopedia of School Psychology, (pp.112-113). Thousand Oaks, CA: Sage Publications http://digitalcommons.unl.edu/edpsychpapers/31/

Erchul, W. P., Sheridan, S. M., Ryan, D. A., Grissom, P. F., Killough, C. E., & Mettler, D. W. (1999). Patterns of relational communication in conjoint behavioral consultation. School Psychology Quarterly, 14, 121-147. http://digitalcommons.unl.edu/edpsychpapers/62/

Fallon, L. M., Collier-Meek., M. A., Sanetti, L. M. H., Feinberg, A. B., & Kratochwill, T. R. (2015). Implementation planning to promote parents' treatment integrity of behavioral interventions for children with autism. Journal of Educational and Psychological Consultation, 25, 1-23. https://doi.org/10.1080/10474412.2015.1039124

Finn, C. A. (2003). Remediating behavior problems of young children: The impact of parent treatment acceptability and the efficacy of conjoint behavioral consultation and videotape therapy. Dissertation Abstracts International, 63(07), 2456A.

Freer, P. & Watson, T. S. (1999). A comparison of parent and teacher acceptability ratings of behavioral and conjoint behavioral consultation. School Psychology Review, 28, 672-684. https://doi.org/10.1080/02796015.1999.12085993

Galloway, J. & Sheridan, S. M. (1994). Implementing scientific practices through case studies: Examples using home-school interventions and consultation. Journal of School Psychology, 32, 385-411. http://digitalcommons.unl.edu/edpsychpapers/30/

Garbacz, S. A., McIntosh, K., Eagle, J. W., Dowd-Eagle, S. E., Ruppert, T., & Hirano, K. (2016). Family engagement within school-wide positive behavioral interventions and supports. Preventing School Failure: Alternative Education for Children and Youth, 60, 60–69. https://doi.org/10.1080/1045988X.2014.976809

Garbacz, S. A. & McIntyre, L. L. (2015). Conjoint behavioral consultation for children with Autism Spectrum Disorder. School Psychology Quarterly. https://doi.org/10.1037/spq0000114

Garbacz, S. A., McIntyre, L. L., & Santiago, R. T. (in press). Family involvement and parent teacher relationships in students with autism spectrum disorder. School Psychology Quarterly. https://doi.org/10.1037/spq0000114

Garbacz, S. A., Sheridan, S. M., Koziol, N., Kwon, K., & Holmes, S. R. (2015). Congruence in parent-teacher communication: Implications for the efficacy of CBC for students with behavioral concerns. School Psychology Review. https://doi.org/10.17105/spr-14-0035.1

Garbacz, S. A., Watkins, N. D., Diaz, Y., Barnabas, E. R., Jr., Schwartz, B., & Eiraldi, R. (2017). Using conjoint behavioral consultation to implement evidence-based practices for students in low-income urban schools. Preventing School Failure, 61, 198-210. https://doi.org/10.1080/1045988X.2016.1261078

Garbacz, S. A., Woods, K. E., Swanger-Gagné, M. S., Taylor, A. M., Black, K. A., & Sheridan, S. M. (2008). The effectiveness of a partner-centered approach in conjoint behavioral consultation. School Psychology Quarterly, 23, 313-326. http://digitalcommons.unl.edu/edpsychpapers/83/

Gormley, M. J., Sheridan, S. M., Dizona, P. J., Witte, A. L., Wheeler, L. A., Eastberg, S. R. A., Cheng, K.C. (2019). Conjoint behavioral consultation for students exhibiting symptoms of ADHD: Effects at post-treatment and one-year follow up. School Mental Health, 12(1), 53-66. http://dx.doi.org/10.1007/s12310-019-09342-0

Gortmaker, V. J., Warnes, E. D., & Sheridan, S. M. (2004). Conjoint behavioral consultation: Involving parents and teachers in the treatment of a child with selective mutism. Proven Practice, 5, 66-72. http://digitalcommons.unl.edu/edpsychpapers/206

Grissom, P. F., Erchul, W. P, & Sheridan, S. M. (2003). Relationships among relational communication processes and perceptions of outcomes in conjoint behavioral consultation. Journal of Educational and Psychological Consultation, 14, 157-180. http://digitalcommons.unl.edu/edpsychpapers/8/

Guli, L. A. (2005). Evidence-based parent consultation with school related outcomes. School Psychology Quarterly, 20, 455-472. https://doi.org/10.1521/scpq.2005.20.4.455

Holmes, S. R., Sheridan, S. M., Smith, T. E. (2021). Unpacking conjoint behavioral consultation: A latent profile analysis of parent-teacher interactions. Journal of Educational & Psychological Consultation.31, 307-333. https://doi.org/10.1080/10474412.2020.1759080

Illsley, S. D. (2003). Remediating conduct problems in children: Examining changes in children and parents following consultation. Dissertation Abstracts International, 64(4-B), 1904B.

Illsley, S. D. & Sladeczek, I. E. (2001). Conjoint behavioral consultation: Outcome measures beyond the client level. Journal of Educational and Psychological Consultation, 12, 397-404. https://doi.org/10.1207/S1532768XJEPC1204_06

Kim, E. M., Sheridan, S. M., Kwon, K., & Koziol, N. (2013). Parent beliefs and children’s social-behavioral functioning: The mediating role of parent-teacher relationships. Journal of School Psychology, 51, 175-185. https://doi.org/10.1016/j.jsp.2013.01.003

Kratochwill, T. R., Elliott, S. N., Loitz, P. A., Sladeczek, I. E., & Carlson, J. (2003). Conjoint consultation using self-administered manual and videotape parent-teacher training: Effects on children’s challenging behaviors. School Psychology Quarterly, 18, 269-302. Retrieved from https://eric.ed.gov/?id=EJ977430

Kwon, K., Kim, E., & Sheridan S. M. (2012). Behavioral competence and academic functioning among early elementary children with externalizing problems. School Psychology Review, 41, 123-140. https://doi.org/10.1080/02796015.2012.12087516

Lasecki, K. Olympia, D., Clark, E., Jenson, W., & Tuesday-Heathfield, L. (2008). Using behavioral interventions to assist children with type I diabetes manage blood glucose levels. School Psychology Quarterly, 23, 389-406. https://doi.org/10.1037/1045-3830.23.3.389

Lepage, K. M. (1999). Conjoint behavioral consultation: An evaluation of competency-based training through consultant outcomes, consumer satisfaction, and treatment effects. Dissertation Abstracts International, 59(7), 2363A.

Minke, K., Sheridan, S. M., Kim, E. M., Ryoo, J. H., & Koziol, N. (2014). Congruence in parent-teacher relationships: The role of shared perceptions. The Elementary School Journal, 114, 527-546. https://doi.org/10.1086/675637

Mitchell, A. D. & Kratochwill, T. R. (2013). Treatment of selective Mutism: Applications in the clinic and school through conjoint consultation. Journal of Educational and Psychological Consultation, 23, 36-62. https://doi.org/10.1080/10474412.2013.757151

Mulgia, E. N. (2001). Conjoint consultation versus the directive approach on language arts homework completion and accuracy in elementary school children. Dissertation Abstracts International, 62(01), 532B.

Murray, D. W., Rabiner, D., Schulte, A., & Newitt, K. (2008). Feasibility and integrity of a parent-teacher consultation intervention for ADHD students. Child Youth Care Forum, 37, 111-126. https://doi.org/10.1007/s10566-008-9054-6

Myers, L. W. (1997). Conjoint behavioral consultation as an intervention for young children with disruptive behaviors. Dissertation Abstracts International, 57(12), 7714B.

Ohmstede, T. J. & Yetter, G. (2015). Implementing conjoint behavioral consultation for African American children from a low-SES, urban setting. Journal of Educational and Psychological Consultation, 25, 18-54. https://doi.org/10.1080/10474412.2014.929959

Owens, J. S., Murphy, C. E., Richerson, L., Girio, E. L., & Himawan, L. K. (2008). Science to practice in underserved communities: The effectiveness of school mental health programming. Journal of Clinical Child & Adolescent Psychology, 37(2), 434-447. https://doi.org/10.1080/15374410801955912

Ray, K. P., Skinner, C.H., & Watson, T. S. (1999). Transferring stimulus control via momentum to increase compliance in a student with autism: A demonstration of collaborative consultation. School Psychology Review, 28, 622-628. https://doi.org/10.1080/02796015.1999.12085990

Rogers, M., Markel, C., Midgett, J. D., Ryan, B. A., & Tannock, R. (2014). Measuring children’s perceptions of parental involvement in conjoint behavioral consultation: Factor structure and reliability of the parental support for learning scale. Assessment for Effective Intervention, 39, 170-181. https://doi.org/10.1177/1534508413493110

Schnoes, C. J. A. (2003). Conjoint behavioral consultation, ADHD, and homework: A combined intervention package for middle school youth with ADHD. University Microfilms International. https://digitalcommons.unl.edu/dissertations/AAI3059970

Schumacher, R. E., Bass, H., Cheng, K. C., Wheeler, L. A., Sheridan, S. M., & Witte, A. L. (2021). The role of target behaviors in enhancing the efficacy of conjoint behavioral consultation. School Psychology Review. https://doi.org/10.1080/2372966X.2021.1938210

Scope, C. R. (2003). The efficacy of Conjoint Behavioral Consultation to reduce the off-task behavior of elementary school children diagnosed with Attention Deficit Hyperactivity Disorder. Dissertation Abstracts International, 64(6), 1975A. https://digitalcommons.lib.uconn.edu/dissertations/AAI3095843

Semke, C. A. (2011). Examining the efficacy of conjoint behavioral consultation for health behaviors of children with obesity (Doctoral Dissertation). Retrieved from https://digitalcommons.unl.edu/dissertations/AAI3461355

Semke, C. A., Garbacz, S. A., Sheridan, S. M., Kwon, K., & Woods, K. (2010). Family involvement for children with disruptive behaviors: The role of parenting stress and motivational beliefs. Journal of School Psychology, 48, 293–312. https://doi.org/10.1016/j.jsp.2010.04.001

Sheridan, S. M. (1997). Conceptual and empirical bases of conjoint behavioral consultation. School Psychology Quarterly, 12, 119-133. http://digitalcommons.unl.edu/edpsychpapers/59/

Sheridan, S. M. (2000). Considerations of multiculturalism and diversity in behavioral consultation with parents and teachers. School Psychology Review, 29, 344-354. https://doi.org/10.1080/02796015.2000.12086019

Sheridan, S. M., Bovaird, J. M., Glover, T. A., Garbacz, S. A., Witte, A., & Kwon, K. (2012). A randomized trial examining the effects of conjoint behavioral consultation and the mediating role of the parent-teacher relationship. School Psychology Review, 41, 23-46. https://doi.org/10.1080/02796015.2012.12087374

Sheridan, S. M., Clarke, B. L., & Burt, J. D. (2008). Conjoint behavioral consultation: What do we know and what do we need to know? In W.P. Erchul & S. M. Sheridan, Handbook of Research in School Consultation (pp. 171-202). New York, NY: Taylor and Francis Group LLC. Retrieved from https://experts.nebraska.edu/en/publications/conjoint-behavioral-consultation-what-do-we-know-and-what-do-we-n

Sheridan, S. M., Clarke, B. L., & Christenson, S. L. (2014). Best practices in promoting family engagement in education. In A. Thomas & P. Harrison (Eds.), Best practices in school psychology: System-level services (439-454). Bethesda, MD: National Association of School Psychologists.

Sheridan, S. M., Clarke, B. L., & Knoche, L., & Pope Edwards, C. (2006). The effects of conjoint behavioral consultation in early childhood settings. Early Education and Development, 17, 593-617. http://digitalcommons.unl.edu/edpsychpapers/73/

Sheridan, S. M., Clarke, B. L., & Ransom, K. A. (2014). The past, present, and future of conjoint behavioral consultation. In W. P. Erchul & S. M. Sheridan (Eds.), Handbook of Research in School Consultation, (pp.210-247). New York, NY: Routledge. http://digitalcommons.unl.edu/cyfsfacpub/91

Sheridan, S. M. & Colton, D. L. (1994). Conjoint behavioral consultation: A review and case study. Journal of Education and Psychological Consultation, 5, 211-228. http://digitalcommons.unl.edu/edpsychpapers/22/

Sheridan, S. M., Eagle, J. W., Cowan, R. J., Mickelson, W. (2001). The effects of conjoint behavioral consultation: Results of a 4-year investigation. Journal of School Psychology, 39, 361-385. http://digitalcommons.unl.edu/edpsychpapers/37/

Sheridan, S. M., Eagle, J. W., & Doll, B. (2006). An examination of the efficacy of conjoint behavioral consultation with diverse clients. School Psychology Quarterly, 21, 396-417. http://digitalcommons.unl.edu/edpsychpapers/16/

Sheridan, S. M., Erchul, W. P., Brown, M. S., Dowd, S. E., Warnes, E. D., Marti, D. C., Schemm, A. V., & Eagle, J. W. (2004). Perceptions of helpfulness in conjoint behavioral consultation: Congruence and agreement between teachers and parents. School Psychology Quarterly, 19, 121-140. http://digitalcommons.unl.edu/edpsychpapers/9/

Sheridan, S. M., & Garbacz, S. A. (2021). Centering families: Advancing a new vision for school psychology. School Psychology Review, 51(6),726-741. https://doi.org/10.1080/2372966X.2021.1954860

Sheridan, S. M. & Kratochwill, T. R. (1992). Behavioral parent-teacher consultation: Conceptual and research considerations. Journal of School Psychology, 30, 117-139. http://digitalcommons.unl.edu/cyfsfacpub/90

Sheridan, S. M. & Kratochwill, T. R. (2008). Conjoint behavioral consultation: Promoting family school connections and interventions. New York, NY: Springer. https://doi.org/10.1007/978-0-387-71248-2

Sheridan, S. M., Kratochwill, T. R., & Bergan, J. R. (1996). Conjoint behavioral consultation: A procedural manual. New York, NY: Plenum. https://doi.org/10.1007/978-1-4757-2512-4

Sheridan, S. M., Kratochwill, T. R., & Elliott, S. N. (1990). Behavioral consultation with parents and teachers: Delivering treatment for socially withdrawn children at home and school. School Psychology Review, 19, 33-52. https://doi.org/10.1080/02796015.1990.12087337

Sheridan, S. M., Meegan, S. P., & Eagle, J. W. (2002). Assessing the social context in initial conjoint behavioral consultation interviews: An exploratory analysis investigating processes and outcomes. School Psychology Quarterly, 17, 299-324. http://digitalcommons.unl.edu/edpsychpapers/12/

Sheridan, S. M., Rispoli, K. M., & Holmes, S. R. (2014). Treatment integrity in conjoint behavioral consultation: Conceptualizing active ingredients and potential pathways of influence. In Hagermoser-Sanetti, L. M. & Kratochwill, T. R. (Eds.). Treatment integrity: A foundation for evidence-based practice in applied psychology (pp. 255-278). American Psychological Association.https://doi.org/10.1037/14275-012

Sheridan, S. M., Ryoo, J. H., Garbacz, S. A., Kunz, G. M., & Chumney, F. L. (2013). The efficacy of conjoint behavioral consultation on parents and children in the home setting: Results of a randomized controlled trial. Journal of School Psychology, 51, 717-733. http://digitalcommons.unl.edu/cyfsfacpub/95/

Sheridan, S. M. & Steck, M. C. (1995). Acceptability of conjoint behavioral consultation: A national survey of school psychologists. School Psychology Review, 24, 633-347. https://doi.org/10.1080/02796015.1995.12085792

Sheridan, S. M., Smith, T. E., Kim, E. M., Beretvas, S. N., & Park, S. (2019). A meta-analysis of family-school interventions and children’s social-emotional functioning: Moderators and components of efficacy. Review of Educational Research, 89(2), 296–332. https://doi.org/10.3102/0034654318825437

Sheridan, S. M., Swanger-Gagné, M., Welch, G. W., Kwon, K., & Garbacz, S. A. (2009). Fidelity measurement in consultation: Psychometric issues and preliminary examination. School Psychology Review, 38, 476–495.

Sheridan, S. M., Witte, A. L., & Brower, E. S. (2024). Conjoint behavioral consultation research and practice: Taking stock and looking toward the future. Journal of Educational and Psychological Consultation.1–23. https://doi.org/10.1080/10474412.2024.2366231

Sheridan, S. M., Witte, A. L., Holmes, S. R., Coutts, M. J., Dent, A. L., Kunz, G. M., & Wu, C. (2017). A randomized trial examining the effects of Conjoint Behavioral Consultation in rural schools: Student outcomes and the mediating role of the parent-teacher relationship. Journal of School Psychology, 61, 33-53. https://doi.org/10.1016/j.jsp.2016.12.002

Sheridan, S. M., Witte, A. L., Holmes, S. R., Wu., C., Bhatia, S. A., & Angell, S. R. (2017). The efficacy of conjoint behavioral consultation in the home setting: Outcomes and mechanisms in rural communities. Journal of School Psychology, 62, 81-101. http://digitalcommons.unl.edu/cyfsfacpub/105/

Sheridan, S. M., Warnes, E. D., Woods, K. E., Blevins, C. A., Magee, K. L., & Ellis, C. (2009). An exploratory evaluation of conjoint behavioral consultation to promote collaboration among family, school, and pediatric systems: A role for pediatric school psychologists. Journal of Educational and Psychological Consultation, 19, 106-129. http://digitalcommons.unl.edu/cyfsfacpub/92/

Sheridan, S. M., Witte, A. L., & Brower, E. S. (2024). Conjoint behavioral consultation research and practice: Taking stock and looking toward the future. Journal of Educational and Psychological Consultation.1–23. https://doi.org/10.1080/10474412.2024.2366231

Sheridan, S. M., Witte, A. L., Kunz, G. M., Wheeler, L. A., Angell, S. R., & Lester, H. (2018). Rural teacher practices and partnerships to address behavioral challenges: The efficacy and mechanisms of conjoint behavioral consultation. The Elementary School Journal, 119, 99-121. https://doi.org/10.1086/698694

Sheridan, S. M., Witte, A. L., Wheeler, L. A., Eastberg, S. R. A., Dizona, P. J., & Gormley, M. J. (2019). Conjoint behavioral consultation in rural schools: Do student effects maintain after 1 year? School Psychology, 34(4), 410-420. https://doi.org/10.1037/spq0000279

Sladeczek, I. E., Elliott, S. N., Kratochwill, T. R., Robertson-Mjaanes, S., & Callan-Stoiber, K. (2001). Application of goal attainment scaling to a conjoint behavioral consultation case. Journal of Education and Psychological Consultation, 12, 45-58. https://doi.org/10.1207/S1532768XJEPC1201_03

Sladeczek, I. E., Madden, L., Illsley, S. D., Finn, C., & August, P. J. (2006). American and Canadian perceptions of the acceptability of conjoint behavioural consultation. School Psychology International, 27, 57-77. https://doi.org/10.1177/0143034306062815

Smith, T. E., Holmes, S. R., Romero, M. E., & Sheridan, S. M. (2022). Evaluating the effects of family-school engagement intervention on parent-teacher relationships: A meta-analysis. School Mental Health, 14, 278-293. https://doi.org/10.1007/s12310-022-09510-9

Stephan, W. C. (1999). Conjoint behavioral consultation: Delivering treatment for in the special education program of an elementary school. Dissertation Abstracts International, 60(3), 1292B.

Swanger-Gagné, M. S., Garbacz, S. A., & Sheridan, S. M. (2009). Intervention implementation integrity within conjoint behavioral consultation: Strategies for working with families. School Mental Health, 1, 131-142 https://doi.org/10.1007/s12310-009-9012-y

Weiner, R. K., Sheridan, S. M., & Jenson, W. R. (1998). The effects of conjoint behavioral consultation and a structured homework program on math completion and accuracy in junior high students. School Psychology Quarterly, 13, 281-309. http://digitalcommons.unl.edu/edpsychpapers/61/

Wheeler, L. A., Brown, K. E., Chen, D., Sheridan, S. M., Witte, A. L., Gormley, M. J., Brower, E. S., & Gomes, R. T. M. (in press). Parent-teacher relationships: Factors that influence dyadic congruence. Elementary School Journal.

Wilkinson, L. A. (2005a). Supporting the inclusion of a student with Asperger Syndrome: A case study using conjoint behavioral consultation and self-management. Educational Psychology in Practice, 21, 307-326. https://doi.org/10.1080/02667360500344914

Wilkinson, L. A. (2005b). Bridging the research-to-practice gap in school-based consultation: An example using case-studies. Journal of Education and Psychological Consultation, 16, 175-200. https://doi.org/10.1207/s1532768xjepc1603_3

Wilkinson, L. A. (2006). Conjoint behavioral consultation: An emerging and effective model for developing home-school partnerships. International Journal of Behavioral Consultation and Therapy, 2, 255-239. https://doi.org/10.1037/h0100778

Witte, A. L., Schumacher, R. E., & Sheridan, S. M. (2022). The effectiveness of technology-delivered conjoint behavioral consultation: Addressing rural student and family needs. Journal of Educational and Psychological Consultation. https://doi.org/10.1080/10474412.2022.2083624