These splints were used as study controls.
HPS acknowledges National Blood Service donor and UK-Twin Study controls (Wellcome Trust 07611, FP7/2007-2013).
It's not necessarily the case that one study will control for the same potentially confounding factors that the next study controls for, and even the measures of aggressive behaviour that are used can vary.
In addition to examining the source of grants, the study controls for a number of independent factors including: scientific field, research center affiliation, tenure status, and gender.
If the difference between the expected return and the actual return on an event day is statistically significant, it may be attributed to the event occurring on that day, provided that the study controls for confounding factors.
The current study controls for neighborhood selection and preference and isolates the effect of the built environment on walking, car use, and obesity.
To show that, the study controls for workers' personal characteristics, like their level of education, to compare similar workers in different industries.
The study controls for numerous factors that might otherwise affect an election: how much money was spent on the races; the state's partisan makeup; changes in electoral laws like early voting and day-of registration; and shifts in incentives to vote, like which party controls the state legislature.
The study controls for general trends in accidents, regression-to-mean effects and migration, separately estimating the accident changes attributable to the impact of the schemes on traffic speed and on traffic volume.
0 or 5 Not stated in one study, controls not stated in two studies.
Five, this study controls for both inter-state and intra-state differences in wage trends.
