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Efficacy of alcohol screening in the accident and emergency department managed by reception staff: a pilot study

R Patton1, J Shute, G Hinchley

  • 1National Addiction Centre, Institute of Psychiatry, Kings College London, 4 Windsor Walk, London, UK. r.patton@iop.kcl.ac.uk

Emergency Medicine Journal : EMJ
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The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...