Service Delivery

An analysis of employer evaluations of workers with mental retardation.

Shafer et al. (1988) · Research in developmental disabilities 1988
★ The Verdict

Employers keep workers with ID who show up on time every day and complete tasks consistently.

✓ Read this if BCBAs working with adults with intellectual disability in vocational or transition programs
✗ Skip if BCBAs focused exclusively on early intervention or academic skills

01Research in Context

01

What this study did

The researchers asked 53 employers to rate workers with intellectual disability. They looked at which behaviors bosses praised most. They also tracked which workers kept their jobs for at least six months.

The team compared the boss ratings to job retention data. They wanted to see which worker traits predicted staying employed.

02

What they found

Bosses gave high marks to workers who showed up on time every day. They also praised workers who completed tasks the same way each time. Good attendance was the top-rated behavior.

Workers with high ratings for attendance, punctuality, and task consistency were more likely to keep their jobs. These three traits stood out as the strongest predictors of job retention.

03

How this fits with other research

Varley et al. (1980) showed adults with ID can learn job interview skills through behavioral skills training. The 1988 study builds on this by identifying which workplace behaviors actually matter for keeping the job after hire.

Ruser et al. (2007) found handheld prompts help teens with ID maintain consistent task performance. This supports the 1988 finding that consistent task performance is valued by employers.

Merritt et al. (2019) used organizational behavior management to reduce staff tardiness. This workplace intervention mirrors the 1988 finding that punctuality is critical for employment success.

Fahmie et al. (2013) found residential managers prioritize practical skills over interpersonal ones when hiring support staff. This aligns with the 1988 employer focus on concrete behaviors like attendance rather than social skills.

04

Why it matters

When teaching vocational skills to adults with ID, target the behaviors employers actually value. Build programs that strengthen attendance habits, punctuality routines, and consistent task completion. Use daily practice with alarm reminders, visual schedules, and repeated role-play. Track these three metrics weekly. If a client struggles with attendance, address transportation barriers or morning routines before teaching complex job skills. These foundational workplace behaviors are the gateway to long-term employment success.

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Start each vocational session by having the client practice signing in on time and completing a familiar task the same way three times in a row.

02At a glance

Intervention
not applicable
Design
other
Population
intellectual disability
Finding
positive

03Original abstract

A critical component of supported competitive employment is the provision of long-term consumer assessment and systematic follow-along services. To date, there is a paucity of information that describes or validates the process of ongoing consumer assessment. In this article, written employer evaluations of workers with mental retardation were analyzed regarding their relationship to employment retention. Three factors were identified which related to employment retention: (a) workers' attendance, (b) punctuality patterns, and (c) consistency in task performance. These findings are discussed in light of their implications for curriculum design and habilitation efforts for persons with mental retardation.

Research in developmental disabilities, 1988 · doi:10.1016/0891-4222(88)90032-7