The phrase "participants in the experiment" is correct and usable in written English.
In an example sentence, you might say: "Over 200 participants in the experiment were asked to complete a survey."
All participants in the experiment signed an informed consent to participate.
"What we found is that participants in the experiment didn't really buy into the idea.
They were then given some notional money and told to distribute it among the participants in the experiment.
The scientists conjured up artificial apparitions, or a "feeling of presence", so convincing and disturbing that some participants in the experiment asked for it to stop.
Scientists found that one particular set of neurons in the auditory cortex of the brain fired their electrical impulses only when the participants in the experiment were listening to music.
Participants in the experiment, being filmed for a BBC2 documentary, say their protest is designed to force the Treasury to adopt measures which will ensure a level playing field between large and small businesses.
Fifteen healthy volunteers (age 20 27 years, 10 females) participated in this experiment: all participants participated in the experiment with image set 1 (male faces), 14 of the same set of participants participated in the experiment with image set 2 (male and female faces), and 12 of the same set of participants took part in the experiment with image set 3 (faces with and without eyebrows).
Eighteen participants participated in the experiment.
Forty two participants participated in the experiment (29 males).
A total of 74 participants participated in the experiment (38 male, 36 female).
She said that the institutes had begun to change procedures to deal with the problems and noted that the Department of Health and Human Services would soon announce further changes needed to protect participants in the experiments.
