What is the biggest advantage of a 'Diagnostic Test' in teaching?

→ Why is 'Diagnostic Evaluation' essential for a teacher? → When micro-analyzing the theoretical and practical distinctions between 'Assessment' and 'Evaluation' in the context of Continuous and Comprehensive Evaluation (CCE), which of the following statements most scientifically and accurately defines the scope, purpose, and nature of these two concepts? → Analyzing the sub-types of dyslexia—specifically 'phonological dyslexia' and 'surface dyslexia'—and neurological disturbances in cortical areas, if a learner is fully capable of phonologically decoding unfamiliar words but severely fails to recognize irregular or exceptional spelling words based on their overall visual appearance, which statement is scientifically true? → On deep analysis of the theoretical and practical structure of educational assessment and evaluation, if a teacher uses continuous feedback and remedial strategies in the classroom under 'Assessment for Learning', and provides summative judgment and grading at the end of the term under 'Assessment of Learning', which of the following statements is most authentic regarding the scientific and pedagogical nature of these two concepts? → What is the primary objective of 'Diagnostic Evaluation' in teaching? → What is the main objective of 'Remedial Teaching' after 'Diagnostic Testing' in education? → When is a 'Diagnostic Test' used in teaching? → What is the purpose of a 'Diagnostic Test' in teaching?