Assessment & Research

Finding specific genes that cause autism: a combination of approaches will be needed to maximize power.

Folstein et al. (1998) · Journal of autism and developmental disorders 1998
★ The Verdict

A 1998 opinion piece says big mixed-method genetic studies are needed to find autism genes, but it offers no ABA actions.

✓ Read this if BCBAs curious about the history of autism genetics.
✗ Skip if Clinicians looking for immediate assessment or intervention tools.

01Research in Context

01

What this study did

Gaily et al. (1998) wrote a think-piece, not a lab study. They asked, "How can we find the genes that cause autism?"

The authors compared different gene-hunting plans. They said mixing many methods in one big study would give the best shot at answers.

02

What they found

The paper has no new data. It simply argues that large, mixed-method genetic studies will have more power to spot autism-linked genes.

03

How this fits with other research

Leung et al. (1998) wrote a similar review the same year. Both papers agree autism is partly inherited, yet they warn that weak study designs block real gene discovery.

Swenson (2008) later built on the idea. That review says you now need hundreds to thousands of families, matched by ancestry, to avoid false negatives.

Dubuque (2015) seems to clash with the 1998 view. It warns that genetic biomarker tests are clinically useless and may hurt families. The difference is timing: 1998 hoped future tests would help; 2015 shows early tests failed to deliver.

04

Why it matters

This paper will not change your next therapy session. It is about lab methods, not ABA tactics. Still, it reminds you why autism looks so varied: many genes may be involved. Keep focusing on behavioral assessment and evidence-based teaching, not genetic labels.

Free CEUs

Want CEUs on This Topic?

The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.

Join Free →
→ Action — try this Monday

Keep using functional behavior assessments; this paper changes nothing in your practice.

02At a glance

Intervention
not applicable
Design
narrative review
Population
autism spectrum disorder
Finding
not reported

03Original abstract

Although autism is clearly inherited, it may be challenging to find the genes involved: The mechanism of inheritance is unknown, families with an autistic child are usually small, parent-child pairs are rare, and a fairly large number of genes may be involved, some or all of which may have a small effect on the phenotype. We discuss several strategies for finding genes, all of which may be used in combination to find the relevant genes.

Journal of autism and developmental disorders, 1998 · doi:10.1023/a:1026008606672