The phrase "intentional effect" is correct and usable in written English.
You can use it when describing something that has been done specifically with a particular purpose in mind, or in order to achieve a certain result. For example, "The director used certain camera angles and lighting to create an intentional effect on the audience."
The (presumed intentional) effect is to cause the shopper to question her own validity.
When I close my eyes I can see it in negative reversal, and perhaps this is a devilishly clever intentional effect.
The Mustafa sections have a more artificial tone; they seem hyper-real and partly made up from fragments of war movies (an intentional effect, as we learn).
From the outside this erotic grotto looks like a construction site covered with tarps, perhaps an intentional effect to make the place seem like a hideaway.
Politically, the leak of the memo has the possibly intentional effect of reminding conservatives why they should defend Jeff Sessions from Trump's attempts to replace him as Attorney General.
The abundance is a drawback, too, even if an intentional effect: too many projects, too much reading, installed in a pavilion that, unlike Mr. Kabakov's previous and artfully dilapidated installations, looks almost too sleek, despite its simple materials.
Three systematic reviews have examined community-based obesity prevention studies in children and adolescents; however, none of these reviews investigated mental health and well-being outcomes either as intentional effects or side effects of the interventions.
Passive systems include building construction-thermal mass effects, incidental thermal mass effects, intentional thermal mass effects, characteristics and performance of thermal storage walls, building shape and orientation, insulation, windows, sunspaces, overhangs, and natural ventilation.
While this may be inadvertent rather than intentional, the effect is the same: The patient does not have a chance to express his or her wishes, much less be assured that they will be followed.
It is estimated that only one-fourth of administered chemotherapy drugs have their intentional cytotoxic effect.
Furthermore, the intentional binding effect [15] shows the impact of awareness on action selection and this contributes to the second hypothesis to bring out the influence of awareness on action selection.
