The phrase "intent or effect" is correct and usable in written English.
It can be used in discussions about the purpose behind actions or the outcomes they produce.
Example: "In legal contexts, it is important to consider both the intent or effect of a person's actions."
Alternatives: "purpose or outcome" or "aim or result".
Supporters of North Carolina's H.B. 589 insist that the courts will find no discriminatory intent or effect of the law in practice.
Is the factual and uncontroversial assertion that " smoking can kill you" (one of the new print warnings) without persuasive intent or effect?
Aubrey Beardsley used a caricaturist's methods, but little of his work, except perhaps the illustrations to The Rape of the Lock, was actually in intent or effect caricature or cartoon.
Because the religious and secular spheres largely overlap in the life of many such schools, the court has tried to identify some facts likely to reveal the relative religious or secular intent or effect of the government benefits in particular circumstances.
The Medical School's two-track policy that resulted in Bakke's rejection did not, by intent or effect, stigmatize him as inferior, or mark him off as a member of a despised caste, or turn him into a second-class citizen.
The goods or services cannot be criminal in intent or effect: highway robbery may be an enterprise, but no community can abide it for long.
By appropriating the theory of "disparate impact" to age and employment, employees did not have to prove discriminatory motivation or intent, only effect.
In each case the intent, or at least the effect, is the same: Voter suppression, mostly of the elderly and minority groups.
"If Mylan engaged in anti-competitive business practices, or violated antitrust laws with the intent and effect of limiting lower cost competition, we will hold them accountable.
It replaced intent with effect.
Regardless of intent, the effect was stifling.
