A measure of objective suicidal intent was found to have different correlates in a sample of 235 completed suicides and a sample of 208 attempted suicides, suggesting that the scale measures different qualities in the two groups for whom 20 personal characteristics were available.
References
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BeckR.MorrisJ.BeckA. T.Cross-validation of the suicidal intent scale. Psychological Reports, 1974, 34, 445–446.