2. Professor Ian Gordon supplementary report (PDF) - Community Law

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males identified as AfricanMiddle Eastern (LEAP) in file 2;they had a total of
454entriesinthefile'ofthose454entries,62,otL3,7o/o,were"ARREST_
DRUNK,.ItisnotpossibleonthebasisofTableltosayamon8howmany
males these 62 "ARiìEST - DRUNK" custody reasons arose' They may have
arisenfromasmailnumberofmales,whowererepeatedlyrecordedwitha
custody reason of "ARREST - DRUNK"' or from 62 males' all of whom were
custody ïeason of "ARREST - DRUNK"' ot other
e extremes. This, of course/ can be investigated' but
this information'
g.TheobservationinparagraphShasconsequencesforthequestionofstatistical
significance. Testing thJsimilarity or otherwise of the distributions in Table 1
cannotbedoneintheusualwayforacross-classifiedtable,becausethe
independentunitsofanalysisinthiscasearet|le2lgmalesinvolved,ratherthan
thel'524records,Itisnotstraightforward.tocarryoutatestofthesimilarityor
otherwise of the distributions, ior this reason. However, the percentages down
the columns are not markedly different and in my opinion an appropriate
statistical test would be unlikely to show a statistically significant difference
between the two SrouPS, in the distribution of custody reasons'
l0. The second requested analysis is: "FiIe 2: Distribution of 'dispositions' by indiztiduøI
lDnumbersforAfticanlMiddleEøsternGEAP)malesandmalesof,othet'ethnic
apPemance, and statistical significønce' "
1.1.'Thedistributionofdispositionbywhetherornotthemaleassociatedwiththe
custody reason was AfìicanMiddle Eastern (LEAP) is given in Table 2 below'
Statistical commentarY on VID 969 of 20L0
Ian Gordon