Decision Making, Assessment and Risk in Social Work by Brian J. Taylor
Author:Brian J. Taylor [Taylor, Brian J.]
Language: eng
Format: epub
Tags: Social Science, Social Work, Political Science, Public Policy, Social Services & Welfare
ISBN: 9781526412546
Google: xeKVDgAAQBAJ
Publisher: Learning Matters
Published: 2017-04-10T05:14:31+00:00
Table 6.4 Using a 90 per cent accurate tool to predict suicide
Signal detection theory focuses on the challenge in identifying what information is relevant to the decision amidst the vast amount of irrelevant data (noise) present to the decision maker, as applied in diverse fields such as identifying enemy aircraft from radar-screen blips. The pioneering work of Len Dalgleish in social work might be considered within this approach (Dalgleish and Drew, 1989). If the task is to predict the likelihood of abuse, then there are four options. If there is a signal (abuse) then a yes response is a hit and a no is a miss; if there is no signal (no abuse) then a response of yes is a false alarm and a no is a correct rejection (of this case leading to abuse). Dalgleish considered the influences on a social worker that might increase the likelihood of correct yes and false alarm (such as an overriding concern not to miss any instance of abuse), and the influences that might increase the likelihood of correct no and incorrect rejection (such as an overriding concern not to disrupt families where this is not warranted).
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