The phrase "a study of the effect" is correct and usable in written English.
It can be used when discussing research or analysis regarding the impact or influence of a particular variable or phenomenon.
Example: "The researchers conducted a study of the effect of sleep deprivation on cognitive performance."
Alternatives: "an analysis of the impact" or "an examination of the influence".
This is also not a study of the effect of an intervention to change lifestyle behavior.
The participants — ordinary residents of New Haven — were told they were participating in a study of the effect of punishment on learning.
A study of the effect of radiographic positioning has been conducted using a cadaveric bone phantom.
So Joshua Angrist, who's an economist, did a study of the effect of the draft lottery on success of people in life.
The prediction, based on a study of the effect of reputation crises affecting more than 50 organisations, came as activists from the UK Uncut movement prepared to descend on around 40 of the US company's UK branches.
The paper presents a study of the effect of constant magnetic field on composites used in building industry.
This paper presents a study of the effect of unloading rate on the creep recovery of force transducers.
A study of the effect of starting stress intensity factor on the resultant threshold value was also completed.
On a recent Monday afternoon in Dr. Stickgold's lab at Beth Israel Deaconess Medical Center in Boston, a postdoctoral student, Matthew Tucker, was running a study of the effect of naps on memorized words.
Masters, R. E., R. J. Brown, D. M. John, and D. W. Coombs (1992) A study of the effect of HFC 125 on pregnancy of the rat (inhalation exposure), Huntingdon Research Ctre, Report No. ALS 9/920434.
The Comptroller General shall conduct a study of the effect of the antitrust exemption on institutional student aid under section 568 of the Improving America's Schools Act of 1994 (15 U.S.C. 1 note) [Pub. L. 103 382, see below].
