More recently, Dr. Aron and colleagues have created laboratory experiments to test the effects of novelty on marriage.
The goal of the trial was to test the effects of different doses of gamma interferon, and George belonged to the group that received the largest dose.
Hawthorne, a Chicago factory, hired researchers in the 1920s to test the effects of changes in lighting levels and working hours.
In 1980, an F.D.A. committee on irradiation recommended that the agency test the effects of substances, called unique radiolytic compounds, that were found only in irradiated food.
"It would be difficult to get ethical approval to test the effects of taking this drug in the long term," she said.
So the political hacks are now using M.R.I.'s to test the effects of TV commercials on the human brain (front page, April 20).
The fourth crusader is a gynecologist named John Rock, who joined Pincus to test the effects of the synthetic hormone progesterone on women.
To test the effects of Facebook's political influence, the Guardian asked 10 US voters, five liberal, five conservative, to switch their feeds to the other side.
"The bodies included those of people who had been used in experiments to test the effects of germs".
Several experiments were performed to test the effects of strength profile variations in the converging plates.
Analysis of variance was used to test the effects of the different pressures.
