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<meta property="og:title" content="Stress Data for Two-Way ANCOVA — stress" />

<meta property="og:description" content="Researchers want to evaluate the effect of a new &quot;treatment&quot; and
 &quot;exercise&quot; on the stress score reduction after adjusting for &quot;age&quot;.
Two-way ANCOVA can be performed in order to determine
 whether there is inte