Tap how many dots (1–6). A letter follows. At the end, type the letter string. Two misses at a length ends the run.
Cómo funciona
Tap how many dots (1–6). A letter follows. At the end, type the letter string. Two misses at a length ends the run. Lab counting span is timed and scored under rules. This browser mix is practice, not a clinical IQ. Práctica — no es un CI clínico.
➕ Operation Span Lite — Maths, Then Letters📖 Reading Span Lite — Sense Check, Then Words🔠 Amplitud de letras lite — directa A–Z📌 Keep-Track Lite — Last Item Per Category
❓ FAQ
Is this a reading-span clone?No. Reading-span lite is another URL. Here the distractor is a count. Práctica — no es un CI clínico.
Can I skip counting?You can, and the toy still is not an IQ. The point of the paradigm is the dual load. Práctica — no es un CI clínico.
Is a long letter string high IQ?No. Familiarity and guessing inflate tiny web sets. Práctica — no es un CI clínico.
📅 Última actualización: 2026-08-27 · ✔ Revisado por el equipo editorial de All-Lifes · Acerca de · Metodología