Mental Retardation

 

 

Definitions of MR

* Mental retardation (MR) is a social construct based on society's views and expectations of people

* Historically, MR has been defined by the AAMR

* American Association on Mental Retardation

* Old definitions included terms such as

* EMR - Educable mentally retarded

* TMR - Trainable mentally retarded

 

1992 AAMR Definition

* Substantial limitations in functioning

* Significantly sub average intelligence

* IQ < 70-75

* Limitations in 2 or more of the following adaptive skill areas:

* Communication

* Self-care

* Home-living

* Social skills

* Community use

* Self-direction

* Health & safety

* Functional academics

* Leisure

* Work

* Manifests before age 18

 

Characteristics of Students with MR

* Difficulty focusing attention on relevant aspects/cues

* Memory impairments

* Difficulty generalizing skills from one environment to another

* Lack of motivation

* Learned helplessness

* Outer-directedness

 

* Limitations in adaptive skills

* self-direction/self-determination

* Need for supports

* Intermittent - infrequent, "as-needed"

* Limited - Occasionally, not in all settings

* Extensive - Ongoing/at least weekly

* Pervasive - Constant, lifelong

 

Causes of Mental Retardation

* Biomedical causes

* "within" the individual

* Chromosome disorders

* Down's Syndrome, Fragile X Syndrome

* Oxygen deprivation

* Psychosocial Disadvantage

* Social, behavioral, and educational factors

* Poor nutrition, poor prenatal care, low birth weight, maternal MR, abuse or neglect

* Interaction of biomedical & psychosocial factors

 

Prevalence of Mental Retardation

* 1-3% of the general population

* 12% of children/youth in special education

* Many who used to be classified MR are now classified as LD

 

How are students identified?

* Individual IQ tests

* Wechsler Scales (WISC-R)

* Stanford-Binet

* Adaptive behavior scales

* AAMR Adaptive Behavior Scale - 2nd Ed.

* Vineland

 

 

 

Curriculum for students with MR

* Academics

* Basic academics (reading, writing, math)

* Functional academics

* Reading -- functional words in the environment

* Writing - signing checks

* Math - counting $, telling time, measurement

* General classroom support

* Tutorial assistance

* Curriculum modification

* Learning strategies

* Social skills

* Life-skills

* Identify environments where they will live as adults & teach skills needed to function in that environment

* Self-determination

* Making choices, decisions

* Setting goals

* Accepting responsibility

* Becoming independent

 

Methods for teaching students with MR

* Many of the same methods used with students who have LD, E/BD, ADHD!

* Task analysis

* Break task down into small steps, teach small steps until student can complete the task

* Applied behavior analysis

* Graphing, charting progress data

* Positive reinforcement of desired behavior

* Community-based instruction

 

Where are students with MR taught?

* Over 1/2 are in separate "self-contained" classrooms

* About 1/4 are taught in resource rooms

* Few (8.6%) are educated in regular classrooms

* This may change because of push for inclusion!

 

Collaboration

* Professionals

* Teachers, therapists, vocational adjustment coordinator (VAC), job coach

* Families

* Need support

* The Arc - Association for Retarded Citizens

* Involved in "Group Action Planning"

* Community

* School-industry collaboration

* Friends, professionals, social service agencies

 

MR across the Lifespan

* Early childhood years

* Support for families can lead to prevention

* Early intervention (0-3) programs

* ECI, Early Head Start

* Children may start school at age 3

* Preschool Program for children with Disabilities

* Elementary years

* Many schools are now embracing inclusion

* Middle school & High school

* Focus on functional & vocational skills, transition

* Postsecondary years

* Focus on "competitive employment" (not sheltered workshops)

* Many careers are available

* Many individuals with MR can live independently or semi-independently