The Dead Man Test: a Preliminary Experimental Analysis

Critchfield and his team tested the Dead Man Test. This rule says, "If a dead man can do it, it isn’t behavior."

They watched three deceased people for any sign of movement or sound. The team used a simple checklist and video to be sure.

The study is tiny. It is the first time anyone tried to check the rule with real data.

No behavior showed up. The dead men stayed still and quiet, just as the rule predicts.

The authors warn that three cases are not enough to prove the rule. They call the work a first step, not a final answer.

Sarber et al. (1983) tried something close. They gave music to coma patients and saw small responses. Their work shows that even tiny behavior can be found if you look hard. Critchfield’s study flips the question: can anything be seen when life is gone? Both use tight single-case watching, but one hunts for the smallest sign while the other checks for total silence.

Fraley (1998) wrote that death is just another event in a behavior-analytic view. Critchfield gives that idea a quick lab test. The 1998 paper talks theory; the 2018 paper adds a pinch of data.

Mottron (2015) warns that some big ideas in assessment lack proof. Critchfield’s work echoes the same worry. The Dead Man Test is taught every day, yet this is the first attempt to check it.

You use the Dead Man Test to decide if a goal is really behavior. This study says the rule held in three cases, but we still lack solid proof. Keep using the test, yet stay open to better data. When you write goals, pair the rule with clear, measurable action words so no one has to guess what counts.