A portable observation-experimental booth.
A 1972 fold-up booth kicked off fifty years of portable assessment gadgets you can carry in a bag.
01Research in Context
What this study did
The authors built a small booth you can fold up and carry.
It lets one adult watch a child without the child seeing back.
The paper shows photos and a parts list so you can copy it.
What they found
No data were collected.
The note only gives the plan for others to use.
How this fits with other research
Kim et al. (2024) took the same "movable lab" idea and swapped the wood box for a smartphone.
Their phone tracked kids’ eyes at home with less than one-degree error.
Adams et al. (2021) did the same trick for motor imitation: one 2-D camera plus free software now scores the moves for you.
Lockwood Estrin et al. (2024) packed an eye tracker in a suitcase and flew it to Indian preschools—proof the portable idea can travel to low-resource clinics.
Morris et al. (2024) later gave a six-step cheat-sheet for using any small setup to watch staff fidelity, showing the booth’s spirit lives on in today’s practice guides.
Why it matters
You no longer need a permanent mirror room.
Fold-up booths, phone cameras, and suitcase eye trackers all grew from this 1972 hack.
Pick the cheapest tool that fits your space and population, then collect clean data anywhere.
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02At a glance
03Original abstract
One-way observation facilities are commonly used to allow the observation of subjects with a minimal amount of distraction. The nucleus of the conven- tional one-way observation device is the construction of a one-way mirror, usually built in the wall of the room to be observed. Unfortunately, permanently built observation devices are expensive to construct and limited in function, and therefore the need for inexpensive versatile observation facilities is evident.
Journal of applied behavior analysis, 1972 · doi:10.1901/jaba.1972.5-379