The purpose of TET is to measure which of the following?

Individual differences among learners and candidates are explained using four distinct psychological constructs. Intelligence is the general cognitive capacity to reason, understand, and solve problems. Aptitude is a domain-specific potential or readiness to acquire a particular skill or perform well in a particular role, typically assessed to predict future performance after training. Attitude is a person's settled disposition to respond favourably or unfavourably toward an object, person, or activity. Values are the deeply held beliefs about what is desirable or worthwhile that guide a person's overall conduct.

A Teacher Eligibility Test (TET) is an eligibility-certifying exam whose entire purpose is to check whether a candidate has the requisite capacity to successfully take up the specific role of teaching. Its syllabus, covering child development, pedagogy, and teaching methods, is built to predict how well a candidate can perform as a teacher — this is precisely what aptitude testing measures. TET does not test general reasoning power in isolation, personal opinions about teaching, or a candidate's belief system, so it is not a test of intelligence, attitude, or values.

• Intelligence is measured through general reasoning or IQ-type tests that are independent of any specific job role, whereas TET's content is entirely pedagogy-specific.

• Attitude is measured through opinion or disposition scales, such as liking or disliking the teaching profession, whereas TET evaluates demonstrable pedagogical competence, not opinions.

• Values are measured through belief-system inventories about what is desirable, whereas TET does not probe a candidate's personal belief system at all.

• Aptitude is measured through a domain-specific readiness test for a particular role, which is exactly what TET does for the teaching role.

TET is therefore designed to measure teaching Aptitude.