Social validity in single-case research: A systematic literature review of prevalence and application.
Only 28 single-case studies across six top special-education journals from 2005-2016 fully reported social validity—so start including all three components in your next study.
01Research in Context
What this study did
The team read every article in six top special-education journals from 2005 to 2016. They hunted for single-case studies that measured social validity. They wanted to know how many checked all three boxes: goals, procedures, and outcomes.
They found 28 studies that did it all. The rest either skipped parts or used weak tools like informal chats.
What they found
Only 28 out of hundreds of studies fully reported social validity. Most used quick parent surveys or simple Likert scales. Few asked if the goals made sense to families or if the teaching steps felt fair.
The review shows big gaps. Many papers said "social validity was confirmed" but gave no numbers or quotes.
How this fits with other research
Laugeson et al. (2014) did it right. They asked both parents and teachers to rank skills. The NECC-CSA tool passed the social validity test because people agreed the skills mattered.
Menezes et al. (2021) looked at 18 school studies that tracked real social gains. All found positive effects, yet only some checked if teachers or parents valued the goals. The pattern matches Cohen et al. (2018): social validity is still the missing piece.
Dowdy et al. (2022) found that behavior analysts rarely use structured visual-analysis tools. Cohen et al. (2018) found they rarely use structured social-validity tools. Both reviews point to the same problem: we skip rigorous checks in single-case work.
Why it matters
If you run or read single-case studies, start adding a quick social-validity section. Ask clients or parents if the goal matters, if the procedure feels okay, and if they like the results. Use simple 5-point scales plus open questions. Add the numbers and one quote in your paper. This small step boosts buy-in and meets publication standards.
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02At a glance
03Original abstract
BACKGROUND: Single-case research (SCR) has been a valuable methodology in special education research. Montrose Wolf (1978), an early pioneer in single-case methodology, coined the term "social validity" to refer to the social importance of the goals selected, the acceptability of procedures employed, and the effectiveness of the outcomes produced in applied investigations. Since 1978, many contributors to SCR have included social validity as a feature of their articles and several authors have examined the prevalence and role of social validity in SCR. AIM AND METHODS: We systematically reviewed all SCR published in six highly-ranked special education journals from 2005 to 2016 to establish the prevalence of social validity assessments and to evaluate their scientific rigor. RESULTS: We found relatively low, but stable prevalence with only 28 publications addressing all three factors of the social validity construct (i.e., goals, procedures, outcomes). We conducted an in-depth analysis of the scientific rigor of these 28 publications. CONCLUSIONS: Social validity remains an understudied construct in SCR, and the scientific rigor of social validity assessments is often lacking. Implications and future directions are discussed.
Research in developmental disabilities, 2018 · doi:10.1016/j.ridd.2018.01.007