In this latter study , outcomes were better for girls and for children on medication .
Positive results on an inventory of child behaviour problems were reported for one small study ( n = 24 ) with the caveat that results were only positive when parent training was delivered to individuals and not groups .
Results for this outcome from a small study ( n = 24 ) suggested a long-term benefit for mothers who received the intervention at an individual level ; in contrast , fathers benefited from short-term group treatment .
Parent training may have a positive effect on the behaviour of children with ADHD .
It may also reduce parental stress and enhance parental confidence .
BACKGROUND Attention Deficit Hyperactivity Disorder ( ADHD ) is a neurodevelopmental disorder characterised by high levels of inattention , hyperactivity and impulsivity that are present before the age of seven years , seen in a range of situations , inconsistent with the child 's developmental level and causing social or academic impairment .
Parent training programmes are psychosocial interventions aim ed at training parents in techniques to enable them to manage their children 's challenging behaviour .
OBJECTIVES To determine whether parent training interventions are effective in reducing ADHD symptoms and associated problems in children aged between five and eigtheen years with a diagnosis of ADHD , compared to controls with no parent training intervention .
The performance of tests of publication bias and other sample size effects in systematic reviews of diagnostic test accuracy was assessed.
BACKGROUND AND OBJECTIVE Publication bias and other sample size effects are issues for meta-analyses of test accuracy , as for r and omized trials . We investigate limitations of st and ard funnel plots and tests when applied to meta-analyses of test accuracy and look for improved methods . METHODS Type I and type II error rates for existing and alternative tests of sample size effects were estimated and compared in simulated meta-analyses of test accuracy . RESULTS Type I error rates for the Begg , Egger , and Macaskill tests are inflated for typical diagnostic odds ratios ( DOR ) , when disease prevalence differs from 50 % and when thresholds favor sensitivity over specificity or vice versa . Regression and correlation tests based on functions of effective sample size are valid , if occasionally conservative , tests for sample size effects . Empirical evidence suggests that they have adequate power to be useful tests . When DORs are heterogeneous , however , all tests of funnel plot asymmetry have low power . CONCLUSION Existing tests that use st and ard errors of odds ratios are likely to be seriously misleading if applied to meta-analyses of test accuracy . The effective sample size funnel plot and associated regression test of asymmetry should be used to detect publication bias and other sample size related effects
In this latter study , outcomes were better for girls and for children on medication .
Positive results on an inventory of child behaviour problems were reported for one small study ( n = 24 ) with the caveat that results were only positive when parent training was delivered to individuals and not groups .
Results for this outcome from a small study ( n = 24 ) suggested a long-term benefit for mothers who received the intervention at an individual level ; in contrast , fathers benefited from short-term group treatment .
Parent training may have a positive effect on the behaviour of children with ADHD .
It may also reduce parental stress and enhance parental confidence .
BACKGROUND Attention Deficit Hyperactivity Disorder ( ADHD ) is a neurodevelopmental disorder characterised by high levels of inattention , hyperactivity and impulsivity that are present before the age of seven years , seen in a range of situations , inconsistent with the child 's developmental level and causing social or academic impairment .
Parent training programmes are psychosocial interventions aim ed at training parents in techniques to enable them to manage their children 's challenging behaviour .
OBJECTIVES To determine whether parent training interventions are effective in reducing ADHD symptoms and associated problems in children aged between five and eigtheen years with a diagnosis of ADHD , compared to controls with no parent training intervention .