Mean difference in pain ratings, after vs before placebo, by voltage intensity. Higher value indicates greater pain reduction.
The table depicts the intensity of the shocks and the number of observations in the regular-price and low-price conditions. P value is less than .05 for the shock intensities 27.5 V through 30.0 V, 35.0 V through 75.0 V, and 80.0 V.
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