Assessment of cognitive, social and emotional development is a systematic process used in rehabilitation assessment and counselling to understand an individual’s strengths, limitations, needs and functional capacities. It provides a comprehensive picture of how a person thinks, learns, interacts with others, manages emotions and performs daily activities, which is essential for planning effective rehabilitation and counselling interventions. Assessment of cognitive development focuses on mental processes such as attention, perception, memory, language, reasoning, problem-solving and executive functions. In rehabilitation settings, cognitive assessment helps identify impairments resulting from developmental disabilities, brain injury, neurological disorders or mental health conditions. Standardized tests, clinical interviews, observational methods and functional task assessments are commonly used. Intelligence tests assess overall cognitive ability, while specific tools measure memory, attention span, information processing speed and executive functioning. The assessor also evaluates learning style, adaptability and capacity to acquire new skills. Cognitive functioning is further assessed in real-life contexts, such as the ability to follow instructions, manage time, make decisions and perform vocational or academic tasks. Understanding cognitive development and functioning enables rehabilitation professionals to design individualized training programs, compensatory strategies and counselling approaches that enhance independence and participation. Assessment of social development examines how an individual relates to others, communicates, understands social norms and participates in social roles. Social functioning is crucial for successful