The question is, if this is implemented what are the possible implications? Below are some:

1. More admission seekers

The most obvious implication is that even though the policy will reduce the number of candidates applying to write JAMB every year, it will increase the number of candidates seeking admission through UTME each year. This is not good considering that our tertiary institutions lack the capacity to accommodate the increasing number of admission seekers.

2. Laziness

Having to write exam a year or the one that follows keeps young school leavers on their toes in terms of studying. However, the new policy will breed laziness in the students. A situation may arise that a student will write JAMB in 2017, score 250 but doesn’t get admitted. Such student, knowing fully well that he can use the result in 2018 and 2019 may decide not to study. This will surely reflect in his early years in the tertiary institution.

3. More difficult JAMB

In case, it is logical to expect tougher exams and more strict marking scheme from JAMB. The exams will be difficult such that candidates will have no choice than to come back the following year.

4. Unattractive courses

If the UTME result validity gets extended, many candidates with good UTME scores that fail to secure admission in a particular year will find it hard to consider programmes like diploma, IJMB, Pre-degree etc. since all they have to do is to wait another year and then re-apply for admission with their previous UTME result.

5. Less revenue for JAMB

In a time when the country is in recession and government seem not been able to fund its parastatals, such policy may be harmful.

SOURCE
http://www.financialwatchngr.com/2016/10/21/5-negative-implications-jamb-3-years-result-validity/