Following a week of pressure from Georgetown Coach John Thompson and others, the presidents of the NCAA and of its Presidents Commission decided to ask that Proposition 42 be postponed.

Proposition 42 was designed to tighten academic eligibility guidelines for freshman athletes. Thompson attacked the proposal because it mandates certain scores on standardized tests, which some say are biased.The proposal was passed last week at the NCAA convention in San Francisco and Thompson refused to coach last weekend against Boston College and Wednesday at Providence.

At the request of Georgetown and the Southeastern Conference, a meeting was held Thursday to discuss "the wide range of academic, athletics and socio-economic concerns" arising from Prop 42's passage, an NCAA statement said.

Proposition 42 would change some of the requirements in Proposition 48, which went into effect prior to the 1986-87 school year.

Proposition 48 requires that incoming freshmen have a 2.0 grand-point average and a minimum score of 700 on the SAT or 15 on the ACT to be eligible to play.

So-called "partial qualifiers," those who satisfy only one of the requirements, could receive a scholarship but, like a non-qualifier, couldn't play or practice during the freshman year and would sacrifice one year of eligibility.

Proposition 42 was designed to close the "partial-qualifier" loophole which, according to NCAA estimates, had allowed some 1,800 athletes to receive scholarships the last three years.

The NCAA Academic Requirements Committee "wanted no changes made in Proposition 48," the statement said, adding that "the majority of the Division I chief executive officers of the Presidents Commission concurred."