It said the test should be conducted by an independent team of experts in mental health issues.
The coalition’s demand was contained in a statement by its first national spokesman, Imo Ugochinyere.
Ugochinyere said the test was necessary in order to ascertain the state of the mental health of the presidential candidates “so that any person who does not pass the examination should not be allowed to participate in the election.”
He stated, “A country of about 200 million people cannot be living and thriving under the situation of being in doubt of the mental stability of the man who holds their mandate to lead and who is seeking an extension of that mandate.
“The international community is also expressing a similar doubt, hence their reactions to the economy and the withdrawal of their businesses from the country. At no other particular time in the history of Nigeria has the number of businesses that closed down in the almost four years of the Buhari presidency happened before in Nigeria.