Johannes Rojahn

BPI and ICAP: A Study of Concurrent Validity: (509062008-001)

Rebecca H. Zaja, Johannes Rojahn, Daniel J. van Ingen, 2008 .

Reliability and validity studies of the Facial Discrimination Task for emotion research

Johannes Rojahn, J. Rojahn, F. Gerhards, 2000, Psychiatry Research.

The Emergence of Challenging Behaviors in At-Risk Toddlers with and without Autism Spectrum Disorder: A Cross-Sectional Study

Johnny L. Matson, Jill C. Fodstad, Johannes Rojahn, 2012 .

Toward an empirically based parameter selection for time-sampling observation systems

Johannes Rojahn, J. Rojahn, R. Kanoy, 1985 .

Reliability and Validity of an Assessment Instrument for Anxiety, Depression, and Mood Among Individuals with Mental Retardation

Johannes Rojahn, J. Rojahn, A. Esbensen, 2003, Journal of autism and developmental disorders.

Assessment and Diagnosis of Autism and Spectrum Disorders in Children

Johnny L. Matson, Johannes Rojahn, 2010 .