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<p>It depends on the subject(s).</p>
<p>In some cases, such as engineering and chemistry, there is accreditation or certification (ABET for engineering, ACS for chemistry) that indicates meeting a decent baseline quality, though some schools’ programs may be better in some respects (which may depend on the student).</p>
<p>In other cases, becoming familiar with the course offerings typical of strong departments in the subject can help evaluate the offerings at a given school.</p>