· David Cruz · ABA Best Practices  · 4 min read

Home Visit Data Collection - Stop Reconstructing Sessions in Your Car

Paper data collection needs a desk, two hands, and a pen that hasn't rolled under the couch. Home visits give you none of those things. Here's how to collect data during the session instead.

Paper data collection needs a desk, two hands, and a pen that hasn't rolled under the couch. Home visits give you none of those things. Here's how to collect data during the session instead.

Key Takeaways

Paper data collection needs a desk, two hands, and a pen that hasn’t rolled under the couch. Home visits give you none of those things. TallyFlex was built for exactly this - one-handed data collection on your phone that works offline and syncs to your BCBA automatically. No more reconstructing sessions in your car.


You’re sitting cross-legged on a living room floor running a discrete trial session. The family dog keeps nudging your clipboard. A sibling is watching cartoons in the next room. Your client just emitted the target behavior, but your pen rolled under the couch two minutes ago.

If you’re an RBT collecting data in homes, you already know: the environment works against accurate recording. Paper needs a flat surface, two hands, and a pen that hasn’t disappeared. You rarely have all three.

The problem isn’t your skill - it’s the tools. Paper data sheets were designed for clinics with tables, chairs, and predictable environments. Home visits are none of those things. And the workaround most RBTs end up with - filling in the data sheet from memory in the car after the session - means your BCBA is making clinical decisions based on guesses.

TallyFlex was built for exactly this kind of situation. It runs on your phone, works with one hand, and doesn’t need Wi-Fi.

How TallyFlex Handles Home Visit Challenges

No Desk? No Problem.

In a clinic, your clipboard sits on a table. In a home, you’re on the floor, on a couch, standing in a kitchen. TallyFlex runs on the phone already in your pocket. Tap the screen to record frequency. Tap to start and stop duration timers. One hand. Any position.

Distractions Don’t Mean Missed Data

Siblings, pets, visitors, phone calls - home environments are unpredictable. With paper, a brief distraction means a missed tally or a forgotten ABC entry.

With TallyFlex, recording takes a single tap. If you miss something, you can add data retroactively. If you record one too many, long-press to delete it. And the visual timer keeps running at the top of your screen through every interruption - no need to juggle a separate stopwatch.

No Wi-Fi? It Still Works.

Many homes have weak or no Wi-Fi. Some RBTs work in rural areas where even cellular data drops. TallyFlex works completely offline. Data is stored on your device and syncs automatically when you’re back in range. Your BCBA sees the session data the same day - no transcription needed.

flowchart LR
    A[Collect data offline] --> B[Stored on device]
    B --> C[Connection returns]
    C --> D[Auto-syncs to cloud]
    D --> E[BCBA sees data same day]

The Car Reconstruction Problem - Solved

Here’s the pattern most RBTs know: finish a session, walk to your car, try to fill in the data sheet from memory. Was the target behavior four times or five? The ABC data from that one incident is fuzzy.

This disappears when you capture data during the session. TallyFlex even sends you a notification if a duration timer is still running, so nothing gets left behind.

What This Looks Like in Practice

TallyFlex active session on iPhone - visual timer with multiple trackers, adding notes in real-time, and long-press to correct mistakes

Everything happens on your phone, one-handed, during the session:

  • Tap to record - frequency, duration, percent correct, all on the same screen. No flipping between paper forms.
  • Add notes in real-time - tap the note icon mid-session. “Client distracted by sibling arriving home” takes five seconds to capture.
  • Fix mistakes instantly - long-press any event to delete it. Recorded one too many? Undo it before the session ends.
  • Visual timer always visible - the session timer runs at the top of your screen while you collect data below it.

Works for You or Your Whole Team

You can start using TallyFlex on your own - just your phone and your clients.

If your team decides to adopt it, even better. Your BCBA sees session data immediately, everything is automatically graphed and analyzed, and nobody spends hours transcribing paper into spreadsheets. That’s less busywork for everyone and more time focused on what actually matters.


What’s Next?

Collect data during the session, not in your car afterward. See how TallyFlex works.

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