en گفتار درمانی Speech therapy پژوهشي Original Research Articles <div style="text-align: justify;"><strong>Objectives</strong>: The present research aims to identify the assessment and treatment processes used by Iranian Speech-Language Pathologists (SLPs) for Childhood Apraxia of Speech (CAS) and investigate the impact of their knowledge level and experience on their choice of assessment and treatment.<br> <strong>Methods</strong>: This research is a cross-sectional study using a survey design conducted on 260 SLPs with a minimum of a Bachelor&rsquo;s degree and at least one year of experience of working with preschoolers. The CAS assessment and treatment were measured by a validated questionnaire, which was completed in person or online.&nbsp;<br> <strong>Results</strong>: The tests of Diadochokinesis (DDK) (66%), single-word speech sampling (58.1%), oral-motor assessment (54.6%), and connected speech sample analysis (53.1%) were the popular tests chosen by the participants. The treatment approaches indicated that Oral Motor Exercises (OMEs) (57.7%) were the only treatment for which over half of the participants voted. The experts chose phonologically-based treatments and Integrated Phonological Awareness (IPA), but the less-experienced participants were more interested in PROMPT (prompts for restructuring oral muscular phonetic targets). The majority of the participants (70.8%) believed that children with CAS make very slow progress and 21.9% declared that speech problems of such children persist through the school years.<br> <strong>Discussion</strong>: The participants&rsquo; choice of assessment tasks is in line with the results of recent studies. However, opting for outdated treatments such as OME indicates a gap between the clinicians&rsquo; knowledge and experience in using evidence-based treatments.</div> Childhood apraxia of speech, Assessment, Treatment, Prognosis, Speech-language pathologists 1 10 http://irj.uswr.ac.ir/browse.php?a_code=A-10-24-4&slc_lang=en&sid=1 Mersede Imani-Shakibayi mersede.imani@gmail.com 0000-0003-3025-811x No Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Talieh Zarifian t.zarifian@yahoo.com 0000-0002-6067-829x Yes Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Nasibeh Zanjari Na.Zanjari@uswr.ac.ir 0000-0001-8183-4012 No Iranian Research Center of Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.