"produced improvement" is a correct and usable phrase in written English.
It can be used when describing a positive change or development that was caused by someone or something. Example: The new training program implemented by the company produced significant improvement in employee performance and productivity.
Randomized trials have generally produced improvement in measures of psychological well-being, but improved glycemic control has been more elusive.
NEW ORLEANS — A broad education overhaul under way here has produced improvement in test scores, results released Tuesday showed, though many students are still struggling.
It would appear that cognitive-behavioral therapy, relaxation therapy, and biofeedback all produced improvement in pain relief [104].
The Environment Agency has produced improvement plans to address a number of sources of both agricultural and urban pollution.
The results here are consistent with the observation that implantation of autologous bone marrow stromal cells produced improvement in neurological defects in HD mice, experiments in which the fate of the cells was not investigated [33].
Results showed education- as part of intensification of treatment- produced improvement in diabetic control in type 1 diabetes with mixed results in type 2 diabetes.
The law has not produced improvements on state or national reading tests, nor have achievement gaps been narrowed.
Treatment with 4α-PDD produced improvements on a par with ouabain (91 107% increases in tensile stiffness).
Similarly, an investigation on 327 demented patients showed that 120 mg of G. biloba extract produced improvements in dementia [69].
Legal reforms strengthened state institutions, particularly the judiciary, and produced improvements in human rights, civil liberties and the business climate.
Fifteen out of twenty studies (75%) observed that the interventions produced improvements in behavioral outcomes.
