test subject

Certainly the last child does benefit from a relaxation of rigor, which is, in part, the result of experience — the first child is, essentially, a test subject — and exhaustion.

Yet, at the same time, research in clinical psychology always relies on a test subject’s personal, subjective experience.

"We don't know what influences the men were exposed to before they took the fertility test, which will be different for every test subject. Furthermore, it's practically impossible to obtain tissue samples from their reproductive tract, as that would entail an invasive medical procedure."

The execution came after a last-minute legal battle in which Smith’s attorneys contended the state was making him the test subject for an experimental execution method that could violate the constitutional ban on cruel and unusual punishment.

Smith’s lawyers argued that the state is trying to make him the test subject for an experimental execution method.