A device for finding out what pupils understand and can do with the purpose of adapting future teaching to the needs of the individual or the class is known as

Techniques, strategies, or methods used as an assessment to know the problems faced by the students and their weak points are called diagnostic assessments.

Diagnostic assessments find out the ability, skill, speed, and amount of learning of a student. It helps in future-learning and outcomes according to the objective.

Types of Assessment

• Summative Assessment:- Summative assessment or assessment of learning which summarizes the participants' development at a particular time that how much the participant has learned. It is mainly done to make a judgment and not improvement.
• Information Assessment:- Informative assessment assesses how teachers and students are using information’s from multiple sources and drive teaching and learning according to the assessment.
• Diagnostic Assessment:- Diagnostic Assessment is a type of pre-assessment that allows a teacher to determine students' strengths, weaknesses, knowledge, and skill before instruction so that the teacher can take measures to correct the mistakes and weaknesses of the students.
• Testing:- Testing is a tool used to measure and evaluate students learning, level of growth, and achievements.

Hence, we can conclude that a device for finding out what pupils understand and can do to adapt future teaching to the needs of the individual or the class is known as diagnostic assessment.