Erhard, R. (1988). Improving The Coping of Youth in Times of Hardship - A Counseling-Educational Program. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Dar, Y., Resh, N., & Erhard, R. (1989). Academic Achievements in Reading Comprehension and Science in Junior High Schools. Jerusalem: The Institute for Research and Innovation in Education, The Hebrew University.
Dar, Y., Resh, N., & Erhard, R. (1989). Feelings of Discrimination at School and in Society and their Connection to Background Data. Jerusalem: The Research Institute for Innovation in Education, The Hebrew University.
Erhard, R., Dar, Y., & Resh, N. (1990). How Adolescents Perceive Equal Opportunities and Social cleavages in Israel. The Research Institute for Innovation in Education, The Hebrew University.
Erhard, R. (1994). Peer Counseling - Prevention of Drug and Alcohol Abuse. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (1995). Implementation of Workshops on Test Anxiety Among High School Students. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (1995). Peer Counseling – Student Perceptions of The Program and Its Outcomes. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (1996). School Counseling and Psychological Services in the Educational System. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (1996). Practicum Work for Graduate Students in School Counseling – Proposed Model. Tel Aviv: Tel Aviv University, The School of Education.
Erhard, R. (1996). Challenges in Training School– A Position Paper. Tel Aviv: Tel Aviv University, The School of Education.
Erhard, R. (1997). Student Perceptions of Drug Prevention Programs – A Comparison between Peer-Facilitated Programs and Teacher-Facilitated Programs. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (1997). “Personality and Education”, In Kashti, M. and Arieli, M. (Eds.), Lexicon for Education. Pp. 44-45.
Erhard, R. (1998). A National Survey of School Counselors – An Analysis of Findings. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Raviv, A., & Erhard, R. (1998). A National Survey of School Psychologists – An Analysis of Findings. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., & Ronen, Y. (1998). School Preparedness for Violence Prevention. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., & Shochat, A., & Cinnamon, G. (1998). Life Skills: Student Perceptions of the Program. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., & Periante, A. (1999). Evaluation of a Community Program for Prevention of Child Abuse. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., Shacham, Y., & Klingman, A. (2000). A Needs Survey: the Educational System on the Eve of the IDF’s Withdrawal from Lebanon. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., & El-Dor, Y. (2001). Implementation of the "School Violence Scale": A Study of Principals. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., Bar-Tal, Y., & Goldstein, Y. (2001). An Evaluation of the “Continuum” Project: Early Detection and Treatment of Students with Learning Disabilities. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., & Hozeh, A. (2001). Prevention of School Violence – A Model of Community Schools in Jerusalem. Jerusalem: The Administration for Community Schools and PCS.
Erhard, R., & Ronen-Seter, A. (2001). A Ripple Effect: The Effect of a Television Program on Youth Suicides on Students. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., Puncher, M., Arnon, H., & Kivity, M. (2001). The Role of the Psychological Counseling Service in Self Managed Schools. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (2001). School Pupils as Research Subjects: Problems and Dilemmas. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., & Shemer-Elkaim, T. (2002). The School Counseling in Elementary School – A Survey of Principals. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. (2005). An Evaluation of the Effectiveness of the Screening of Students with Post trauma Stress Disorder. Jerusalem: The Ministry of Education and Culture, the Psychological – Counseling Services.
Erhard, R. A (2008) National Survey of School Counselors. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R. A (2008) National Survey of School Psychologists. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services. .
Erhard, R. (2008)Screening Children with PTDS: What Happens on the Next Day?. Jerusalem: The Ministry of Education and Culture, The Psychological – Counseling Services.
Erhard, R., Suskin, R., & Brill, Y. (2009).The Implementation of Life Skills Program. Jerusalem: The Ministry of Education and Culture, The Psychological - Counseling Services.
Erhard, R. (in preparation) Best Practices in Promoting Gender Equity in the Academy.