A master thesis entitled (The development of consonant sounds among Iraqi children in Maysan Governorate from three to six years of age: a phonetic obstetric case study) was discussed in the Department of English at the College of Arts at the University of Basrah.

The thesis presented by the student, Rabab Qasim Ibrahim, included five chapters (the initial steps of the study, the theoretical aspect, research design and methodology, data analysis and interpretation, and discussion of the results, conclusions, and recommendations).

The thesis aims to study the development of consonant sounds in Maysan children and highlight the most important phonological processes in the sampled speech. The study revealed that the most important phonological operations are substitution and deletion, and they occurred for three- and four-year-old children.