(idiomatic,social sciences,law,public policy) An informalmethod for assessing the maturity, reliability, or probity of a person, inviting one to judge whether one would entrust this person with the care of one's own children.
1993, Gideon Koren et al., "Maturity of Children to Consent to Medical Research: The Babysitter Test," Journal of Medical Ethics, vol. 19, no. 3, p. 146:
The babysitter, presumably between the ages of ten and 15, is quite explicitly expected to function in a way usually expected of mature individuals.
2001, Michael L. Radelet and Hugo Bedau, "Erroneous Convictions and the Death Penalty," in Wrongly Convicted: Perspectives on Failed Justice, Saundra Westervelt and John A. Humphrey eds., ISBN 9780813529523, p. 274:
To highlight the inadequacy of such evidence, we propose what we call “the babysitter test” for future prosecution witnesses in death penalty cases. We suggest that, to send someone to the gurney or the electric chair on the word of one witness, the prosecutor must agree to hire that witness as a babysitter for her or his kids for one evening.
I use a babysitter test when it comes to Israel, Indyk said. Do I trust this man or woman with my child? Will he or she be in the trenches when it really counts? Obama would.
I call it the babysitter test. Can I give a remote control to a 15-year-old, gum-snapping Valley Girl and explain, clearly and succinctly in less than 3 minutes, how she can watch TV? Without getting a panicked call when American Idol begins? TiVo passes the test.