The phrase "a discouraging effect" is correct and usable in written English.
It can be used when discussing the negative impact or influence something has on a situation or behavior.
Example: "The constant criticism from her peers had a discouraging effect on her confidence and motivation."
Alternatives: "a demoralizing impact" or "a negative influence".
Better still, from Cortez's point of view, his action had a discouraging effect on the motivation of the Aztecs.
The following two themes are factors that teachers felt had a discouraging effect on pupils PA outside the curriculum.
Blanchard had a similar take: The population of people who were actively doing research on transgender was already pretty small If anything, [the attack on Bailey] has had a discouraging effect about getting into the area of study.
(Southern Province FGD participant) Disincentives are practices that some managers or leaders perform with negative consequences to payment or benefits of the staff and which have a discouraging effect on staff morale.
A probable explanation is that for some lower educated individuals the instructions and feedback of the self-monitoring might have been too complex and might have had a discouraging effect.
However, even for non-URM students, most of whom successfully complete their undergraduate science courses and subsequently move on to medical school, chemistry courses were substantially more likely to have a discouraging effect than other science courses.
Doing the same with pages for Isis supporters and recruiters could have a similarly discouraging effect, she said.
But she said the weaknesses in the national economy, the uncertainty in energy markets and the corporate scandals that rocked the energy sector have had a greater discouraging effect on investment than the regulatory system in New York.
The need to repeat gFOB tests, or to refer participants for follow-up investigations after an abnormal gFOB test result, can lead to incomplete screening and might have a disproportionately discouraging effect among the 'hard-to-reach' population, such as men and individuals from deprived backgrounds.
We didn't expect to find such a discouraging result.
"The helmet law will have an even more discouraging effect on scooter use than on cycling," Mr. Komanoff said, "because the scooter use is more casual.
