Mad Scientist
Walk an audience from hypothesis to findings — hedged, precise, and spoken aloud.
Follow the sequence Spanish-speaking scientists expect: la pregunta de investigación, la hipótesis, method, results, limitations. Say your design the way labs actually do — a doble ciego, dropping the article — and hedge findings like a professional: los datos sugieren que… is the obligatory opener. Mind the Atlantic split, too: Spain says significación estadística and valor atípico where Latin America says significancia and, in lab talk, just outlier.
Below: the research vocabulary lesson by lesson, the Spain-vs-Latin-America terms that trip up presenters, and a way to rehearse a full presentation out loud — no flashcards, no drills.
The warm-up pack
The lines a researcher actually says at the lectern — not a stats glossary.
01 · Defining the control group
El grupo control son los que no reciben nada, parce.
The control group is the ones who don't get anything, man. (parce — Colombian for "buddy")
This is how researchers actually explain a control group to a room, not the textbook definition — casual, precise, and it sticks.
02 · The thesis-review complaint
La muestra te quedó chica.
Your sample turned out too small.
The single most common note a reviewer writes on a thesis. Say it and you sound like you've sat on a committee.
03 · Calling out weak survey design
Ahí hay sesgo, parce, no encuestaste a todos.
There's bias there, man — you didn't survey everyone.
Naming el sesgo out loud, in the room, is how methodology gets fixed before it becomes a published mistake.
04 · Why nobody trusts a single study
Hay que replicar el estudio para creerla.
You have to replicate the study before you believe it.
Skepticism as a spoken habit — this is the sentence that keeps a lab honest.
05 · Giving the instruction
Randomizá los grupos, che.
Randomize the groups, man. (voseo — Argentina)
An actual instruction handed across a bench. Learn it and you can run, not just describe, an experiment.
06 · The analogy that makes it click
El protocolo es la receta, parce.
The protocol is the recipe, man.
The exact analogy Spanish-speaking labs reach for when a new student looks lost. Borrow it.
07 · Reading the result honestly
Eso no es significativo, es coincidencia.
That's not significant, it's coincidence.
Saying this out loud, in real time, is the difference between a scientist and someone chasing a good story.
08 · The line every seminar repeats
Correlación no implica causalidad.
Correlation doesn't imply causation.
Practically a mantra in Spanish-speaking classrooms too — say it once and you sound like you've defended a thesis.
09 · Reading the graph out loud
Sácale el promedio, mero.
Work out the average, dude. (mero — Mexican slang, roughly "buddy")
The bedside-manner version of "calculate the arithmetic mean" — what a mentor actually says while pointing at your spreadsheet.
10 · Spotting the odd point
Ese punto está fuera de la nube, parce.
That point is outside the cloud, man.
How a scatter-plot outlier gets flagged in conversation, no jargon required — "la nube" is just the cluster of dots.
11 · The obligatory hedge
Los datos sugieren que…
The data suggest that…
Called out in Spanish-speaking labs as the phrase you're required to use before stating a finding — hedge first, claim second.
FLUENT
Finally, someone to talk to in Spanish.
Ten-minute spoken lessons. A teacher who answers back — and gently fixes what you got wrong.
First 10 lessons freeandbefluent.com/spanish/mad-scientistRegional Spanish
Textbooks teach one word. Locals use several — pick your region's and stay consistent.
| English | Spain | Latin America |
|---|---|---|
| double-blind | enmascaramiento doble | doble ciego |
| statistical significance | significación estadística | significancia estadística |
| an outlier | el valor atípico | el outlier |
| a working hypothesis | hipótesis de trabajo | mi hipótesis |
Watch out
The part no drill site can do
Olivia
Your vocabulary teacher for this pack
No vocabulary lists to grind — you present. In the Mad Scientist lessons, Olivia is your scientific audience: state la hipótesis, name la variable independiente and el grupo control, and walk her through a study run a doble ciego. She'll poke at your muestra — every lab has heard the joke n=10 no es muestra, es anécdota — so you defend it, then close with los hallazgos and their limitations, hedged the way it's done for real: los datos sugieren que…
Blank mid-sentence and nothing bad happens — she waits. That's the practice, without unnecessary judgement.
Finish the 6 lessons and Mad Scientist is yours — earned, not given.
First 10 lessons free · 10-minute spoken lessons · your AI coaching team remembers you
Quick answers
La hipótesis, la muestra, el grupo control. Grad students shorten the first to la hipo; a reviewer's favorite complaint is la muestra te quedó chica — your sample came up short.
Formally el valor p and la significancia estadística — though in conversation the hybrid el p-valor is everywhere, and Spain says significación estadística instead.
Double-blind — neither participants nor researchers know who's in el grupo experimental. Spoken Spanish drops the article: a study is run a doble ciego. Spain's formal alternative is enmascaramiento doble.
Open with los datos sugieren que… — the standard hedge — and call early results la conclusión preliminar. The seminar-room refrain applies in any language: correlación no implica causalidad.
The dictionary term is el valor atípico, but in Latin American labs and offices the anglicism el outlier wins outright. Pointing one out on a chart, a Colombian might just say ese punto está fuera de la nube — that point is outside the cloud.
