Dear friends, greetings and respect; By the grace of God and with the cooperation of the faculty members of the Psychology Department of the University of Guilan, the quarterly journal "Behavior Modification Studies" was formed and publishes scientific research in the field of behavior change studies and psychological interventions. This journal is an open access quarterly journal published in Persian and with an extended English summary and electronically by the Psychology Department of the University of Guilan since Farvardin 1402. This journal is newly established and has not yet received scientific accreditation, which God willing, will happen after publishing three issues and being evaluated by the Ministry of Science. This journal publishes research articles of the type "intervention, effectiveness and clinical trials" in the fields of psychopathology and treatment, educational and developmental, health and lifestyle, social, interpersonal and interdisciplinary relationships and, respecting the rules of ethics in publications, follows the International Ethics Committee in COPE publications. The purpose of publishing the quarterly scientific journal "Behavior Modification Studies" is to advance the level of knowledge and present research achievements in the field of behavior change studies. Professors, esteemed researchers, and students can submit their articles to the journal office for publication, in accordance with the article writing guidelines.