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TALLAHASSEE, Fla. (CBSMiami/AP) —  Florida released school grades based on a new high-stakes test given about a year ago.

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The Florida Department of Education on Friday issued grades for schools that are linked to the state’s new test. The Florida Standards Assessment is based primarily on Common Core standards.

The preliminary grades given out for 3,219 schools show that 1,169 schools received A grades and 642 were given a B. A total of 184 schools earned an F grade while 365 schools were given a D. Some 859 schools got a C grade.

Miami-Dade Public Schools Superintendent Alberto Carvalho said the lower scores were the result of a “tumultuous year, marked by increased standards and computer glitches.”

He said students were slammed by a new, much tougher test with higher standards.

“You cannot compare this year’s performance to last year’s performance. Why? Two different types of standards and two different types of tests,” Carvalho said.

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He accented the positive pointing out that Miami Dade Health has more A rated schools in any other district in Florida.

Carvalho said Miami-Dade had no increase in F-graded schools while failing schools “skyrocketed” in the rest of the state.

Broward Supt. Robert Runcie told CBS4 by phone from out of state that while schools there dropped severely in some areas, the district maintained its number of B-rated schools.

Runcie called the sudden, huge increase in standards unfair, likening it to raising the height of the net in the middle of a basketball game.

School grades were delayed because the state had to come up with passing scores for the new test. School superintendents wanted to pause school grades for this year based on the troubled rollout of the new test last spring.

Click here for a list of the school grades.

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