A meta‐analysis of prevalence and cohort studies conducted over the last 30 years was
carried out to identify risk markers for challenging behaviour shown by individuals with …

In this article the authors review methodological issues that arise when interviews and self-
report questionnaires are used with people with mental retardation and offer suggestions for …

Despite the increasing application of qualitative interviewing and analysis approaches,
individuals with expressive language difficulties are still frequently excluded from such …

Research indicates that peer interaction can have a substantial impact on the lives of
adolescents with disabilities. However, social interaction among adolescents with …

This study followed 18 children with developmental disabilities, whose chronological ages
were between 3 years and 6 years at the start of the study, over a 2-year period. At initial …

Background Many people with learning disabilities (LD) show aggressive behaviour, but the
extent of the problem and its associated factors and effects are unclear. Methods A cross …

Background Social interaction is integral to social inclusion. Little is known about the nature
of social interaction between adults with severe intellectual disability and those with whom …

A 3-year study on the use of tangible symbols (ie, objects and pictures used as symbols) by
41 children with a variety of handicapping conditions was conducted to follow up on an …

The study of equivalence relations exhibited by individuals with mental retardation and
language limitations holds the promise of providing information of both theoretical and …

Focus groups are a widely accepted method in qualitative research. While there is a
burgeoning literature on the methodology of focus groups, using focus groups with people …