A systematic review of mands for information
Most mand-for-information studies use where/who frames and skip control conditions, so teach those first but add why/how probes and always run a control test.
01Research in Context
What this study did
Cengher and her team read every mand-for-information paper they could find. They ended up with 32 studies that taught kids to ask who, what, where, when, why, or how.
They wrote down how each study was run, which question words were taught, and whether a control condition was used.
What they found
Where and who questions showed up in almost every paper. Why and how questions were rare.
After 2007 more studies added a control condition, but many still skip it.
How this fits with other research
Bottema-Beutel et al. (2024) looked at 48 behavior-reduction studies and also found weak control conditions. Both reviews say the same thing: we need tighter designs before we trust the results.
King et al. (2020) checked over a thousand behavior-analytic reviews. They warn that most are narrative and lack clear search steps. Cengher et al. (2022) followed a strict systematic method, so it stands out as a stronger map of the literature.
Bottema-Beutel et al. (2025) reviewed how autism studies define problem behavior. Their paper actually includes the 2022 mands review in its scope, showing the two topics—asking questions and reducing problem behavior—often live side-by-side in the same kids.
Why it matters
If you write a mand program, start with where and who frames because the evidence base is thick. Then add tiny probes of why and how; those areas are wide open and may boost complex language. Always build in a control condition—both the mands review and the 2024 behavior-reduction critique say that step is still missing too often.
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02At a glance
03Original abstract
AbstractThe purpose of this paper was to conduct a systematic review of studies on mands for information. We used a combination of keywords to search for articles through PsycINFO® and then conducted reference and citation searches for all articles that met our inclusion criteria. In total, we identified 32 studies with 35 experiments. The most commonly investigated autoclitic frames were where and who, and the least investigated were why and how. Over half of the studies included an evocative scenario that served as a test condition, but did not include a control condition; however, there was an overall increasing trend toward including both conditions starting in 2007. The authors of the published studies reported that participants received information, which led to other reinforcers. We make recommendations for clinical practice, as well as discuss directions for future research.
Behavioral Interventions, 2022 · doi:10.1002/bin.1893