By Steven Pfaff, Charles Crabtree, Holger L. Kern, and John B. Holbein
How we did our research
We drew our conclusions from a type of experiment that researchers call an audit or correspondence study. The experiment was designed to measure whether U.S. public school principals would respond differently to families based on their religious beliefs. To do this, we sent emails to a sample of more than 45,000 public school principals divided evenly across the country. The emails were purportedly sent by a fictional family interested in sending their child to the principal’s school, and asked principals for a meeting. We randomly assigned the family a religious affiliation or lack thereof.
We did that by embedding a quote at the bottom of most emails, in the signature line, that read, “[ … ] teaches that life is precious and beautiful. We should live our lives to the fullest, to the end of our days.” We signaled the family’s religious views by including either “Christianity,” “Catholicism,” “Islam” or “Atheism” in the quote, with the quote attributed to the Rev. Billy Graham, Pope Benedict, the prophet Muhammad or Richard Dawkins, depending on the fictional family’s beliefs.
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