Seguridad

The following is a summary of changes to the calculation of risk and protection factors used during the evaluation of the three CTC demonstration projects. Our risk factor calculations differ from the standard CTC process used in the USA in the following way:

• We used only the positive checked items.

• We used a cut-off point for risk (see methodological appendix at http:// www.shef.ac.uk/ccr/).

• The most important items in the scale* have a greater value (i.e. we applied weighting), except RF4 (high turnover and neighbourhood attachment) and RF6 (aggressive behaviour) where all items are equally weighted (see methodological appendix at http://www.shef.ac.uk/ccr/).

• We used an incremental scale (additive) rather than an average score.**

• We excluded items where the pattern of responses was inconsistent with the rest of the scale.*

• There are fewer factors (items for some factors did not go together*).

• All factors include more than one item.

• We used values of 1–100 for all the factors.

* Determined by the reliability analysis (see methodological appendix at http:// www.shef.ac.uk/ccr/). RF4 is calculated differently (see note).

** Children who did not answer all the items in the risk factor were excluded for that risk factor.

Table A3 Protection factors

Items: see reliability section in methodology appendix for item

weights (items with greater weight Similar to Reliability

are listed first). CTC factor of factor

PF1 Opportunities for pro-social Incremental scale of 3 items: Child attends No 0.65 involvement, community non-school-based activities in neighbourhood:

groups/clubs; leisure/sports centres; scouts/guides

PF2 Opportunities for pro-social Incremental scale of 3 items: Friendly Yes 0.82

involvement, community neighbourhoods – people in neighbourhood are: proud of me; encourage me; notice I’m doing well

PF3 Opportunities for pro-social Incremental scale of 4 items: Proactive at school. Yes 0.71 involvement, school Child at school has lots of chances to: be part of

class discussions/activities; talk to a teacher 1 to 1; help decide things; take part in out-of-school activities

PF3a Rewards for pro-social Incremental scale of 4 items: Good teacher Yes 0.73

involvement, school relations. Teachers praise hard work; teachers let me know when doing well; school lets parents know; feels safe at school

PF4 Family attachment Incremental scale of 4 items: Shares thoughts/ Yes 0.75

feelings father; shares thoughts/feelings mother; close to father; close to mother

PF5 Opportunities for pro-social Incremental scale of 3 items: Parental relation: Yes 0.66 involvement, family chances to do fun things with parents; parents ask

opinion; can ask Mum/Dad for help

PF6 Rewards for pro-social Incremental scale of 4 items: Parental rewards: Yes 0.73 involvement, family parents show they’re proud of me; parents notice

when doing well; enjoys time with mother; enjoys time with father

Table A4 Risk factors

Items: see reliability section in methodology appendix for item

weights (items with greater weight Similar to Reliability

are listed first). CTC factor of factor

RF2 Community disorganisation Incremental scale of 1–5 items: Bad Yes 0.79

and neglect neighbourhood: graffiti, fights; crime and drug

selling; empty buildings; feels unsafe after dark

RF3 Availability of drugs Incremental scale of 1–5 items: 3 items, ‘easy’ to Yes 0.90 get hold of at any age in the area: cannabis, heroin

or cocaine 2 items, ‘easy’ for child y7–8, ‘very easy’ y9+ to get hold of: alcohol; cigarettes

RF4 High turnover and lack of Incremental scale of 6 items: doesn’t like the No 0.63 neighbourhood attachment neighbourhood; wouldn’t miss it on moving; wants

to get out; changed homes 2+ times; changed schools 2+ times; people move about a lot

RF6 Aggressive behaviour Count of any of 4 items: Child has: been bullied Yes 0.42 including bullying sometimes within last year; bullied others

sometimes within the last year; seen pupils picked on; seen a pupil attack a teacher

RF7 Lack of commitment to Incremental scale of 9 items: Rarely/never enjoys No 0.77 school and truancy school; truanted several days at least (in last year,

any age); finds subjects very dull; rarely tries best; often hates school; any truancy in last month (y7–8) or 3+ days in last month (y9+); thinks school unimportant to life; 5 days off in last month ill/other

RF8 School disorganisation Incremental scale of 4 items. School has no clear Yes 0.70 rules on: lateness, absenteeism; bullying. No

punishments by teachers

RF9 Poor parental supervision Incremental scale of 8 items: Parents have no Yes 0.78 clear family rules; would not catch child if drank

alcohol; don’t know who the child is with; would not catch child if played truant; don’t ask about homework; don’t know if not home on time; don’t need a call if child is late; have no clear rules on drugs/alcohol

RF10 Family conflict Incremental scale of 3 items: Between family of Yes 0.77

child – insults/shouting; serious arguments; always arguing about the same things

RF11 Family history of problem Incremental scale of 6 items: Child’s brothers/ No 0.75

behaviour sisters have: smoked cannabis; smoked cigarettes;

drunk alcohol regularly; been excluded from school; taken illegal drugs; and family member had serious alcohol/drug problem

RF12 Parental condoning of Incremental scale of 5 items: Child believes Yes 0.76

problem behaviour parents think it would be ‘a bit wrong’ for child to: draw graffiti; drink alcohol; smoke; steal more than £5 worth; and ‘not wrong’ to pick a fight

RF14 Alienation and lack of Incremental scale of 7 items dealing with Yes 0.80

social commitment oppositional behaviour: Child thinks rules get in the way; likes to see how much they can get

Table A4 Risk factors (continued)

Items: see reliability section in methodology appendix for item

weights (items with greater weight Similar to Reliability

are listed first). CTC factor of factor

RF15 Attitudes condoning Incremental scale of 10 items: attitudes of child. Yes 0.91 problem behaviour A bit wrong to: take a weapon to school; drink

alcohol regularly y7–8; play truant; smoke cigarettes y7–8; smoke cannabis; steal more than £5; use other drugs; get pregnant. Not wrong to: pick a fight; smoke cigarettes y9+; drink alcohol regularly y9+. Not very wrong to attack intending serious hurt

RF16 Early involvement in Incremental scale of 7 involvement items: Age of Yes 0.76 problem behaviour child: drinking alcohol regularly <15; first drunk <15;

first smoked <13; first smoked cannabis <15; first arrested <15; first sniffed glue/solvent (any); excluded from school (any)

RF17 Friends involved in Incremental scale of 10 involvement items: Child Yes 0.85

problem behaviour has friends who: smoke cannabis; play truant

regularly; have been arrested; smoke cigarettes; stole car; been excluded; sold drugs; tried alcohol; used drugs; carried a weapon to school

Table A5 Numbers and completion rates for individual schools

CTC Non-CTC

Area/Survey School Pupils Completed Rate (%) School Pupils Completed Rate (%)

Northside 1st survey NE1 601 501 92 NC1 1,034 978 95 2nd survey 552 462 84 1,151 1,103 96 1st survey NE2 1,340 1,234 92 2nd survey 1,407 1,200 85 1st survey Area 1,941 1,785 92 1,034 978 95 2nd survey totals 1,959 1,662 85 1,151 1,103 96 Westside 1st survey CE1 492 451 92 2nd survey 552 442 80 1st survey CE2 35 21 60 2nd survey - - - 1st survey CE3 12 10 83 CC1 903 738 82 2nd survey - - - 1,021 861 84 1st survey CE4 35 25 71 2nd survey 34 18 53 1st survey CE5 63 50 79 2nd survey 62 43 69 1st survey Area 637 557 87 903 738 82 2nd survey totals 648 503 78 1,021 861 84 Southside 1st survey SE1 715 609 85 SC1 1,035 815 79 2nd survey 717 659 92 961 653 68 1st survey SE2 861 772 90 2nd survey 831 754 91 1st survey Area 1,576 1,381 88 1,035 815 79 2nd survey totals 1,548 1,413 91 961 653 68