A researcher friend writes to tell us,
Scientism is a philosophical belief about science, holding that science is the only rational approach to truth in the world, and that only scientific truths can be rationally accessed and believed. (A softer form of scientism would hold that the results of science are the most rational and most objective truths we can have or hold.)
I think it’s safe to say this is the dominant worldview of the secular scientific community—despite the fact that it is a self-defeating position (since “scientism” itself is a philosophical position and not a scientific truth).
Those seeking a refutation of scientism might be interested in a new book by Ian Hutchinson, professor of nuclear science and engineering at the Massachusetts Institute of Technology, entitled Monopolizing Knowledge: A Scientist Refutes Religion-Denying, Reason-Destroying Scientism.
You can also read quite a bit of the book online for free at the author’s website.
See also: Chronicle of Higher Education shrug.