"positive evaluation" is correct and can be used in written English.
For example, "The manager gave a positive evaluation of the employee's work."
Both of the two evaluative couplings are concerned with positive evaluation of Labor's policies.
These three evaluative couplings are all concerned with positive evaluation of Feeney.
Through provoking positive evaluation of Batman (quarantine), it reinforces the inscribed positive positions towards this seat.
But he offered a positive evaluation of his and Valentine's performances.
Again, he was assigned to try to recruit Iranians as spies, and soon received a positive evaluation.
Of course, with all this promised Iraqi "cooperation," Hans Blix has already announced that he will give a more positive evaluation to the Security Council today.
If, say, an office rival seems poised to trash one of your absent allies, Dr. Hallett suggests you make a "pre-emptive positive evaluation".
A less positive evaluation comes from Norman Pearlstine, who says that in the years since he left the Journal he has never commented publicly about Dow Jones.
Something happens, in millions of humans each year, which changes a negative evaluation into a positive evaluation, like flipping a light switch.
It is suing Standard & Poor's, a credit-rating agency that had provided a positive evaluation of them.
The would-be songwriter soon gets back an invariably positive "evaluation," offering the opportunity, for a price, to have professional musicians compose, sing and record a song with those precious lyrics.
