#GPower
GPOWER Inc. submitted a new device:

Consumer General Wellness Device / Personal Wellness Device
FCC ID: 2AL7EMO-TL001
September 30, 2026 at 7:18 PM
Like, thinking about it, there's something to be said about how so many things operate these days that locks a lot of ppl out. I suspect my phone isn't compatible b/c it's niche-ish (Moto GPower) and "old" (5 yrs old), and perhaps most importantly, a budget phone.
Doctor: I think you might have sleep apnea. Get a home sleep study done b/c they're way cheaper.
Me: Okay!
Narrator: All home sleep studies now use apps that aren't compatible w/ their phone, as they will soon find out.

🫠
September 29, 2026 at 8:40 PM
Yes, in psych power analysis is more often than seldom treated just to tick a fictional Check Box with some sample size doodling based on gpower
July 27, 2026 at 11:51 AM
Incidentally anyone who wants to do this could use free software: JASP, GPower, OpenSesame, and microsoft forms. Teach yourself about Repeated Measures and Power.
February 19, 2025 at 4:29 PM
To be fair, good power calculations are also much more difficult than they are made out to be. T-tests, correlations, sure, just use GPower, but as soon as things get more complicated (e.g. LMMs), power calculations become small simulation studies in themselves
February 2, 2025 at 7:43 AM
On my Moto gPower 5G 2023, Android 14, this is where it's hiding:
Settings
Security & privacy
Privacy (not More security & privacy)
Ads
Delete advertising ID
March 23, 2025 at 9:37 PM
danke! repeated measures, ja habe einfach alles in R gemacht habe zusätzlich noch ne Regression drin. Habe webpower für die rm ANOVAS und pwr für die Regression, wollte halt mal gegenchecken in gpower, das Regressions Sample Size stimmt 1:1 mit der pwr Package Berechnung überein
May 4, 2026 at 1:35 PM
ist das normal dass da so ein Riesenuterschied ist? Ich habe nochmal gegoogelt und das sagte dass da unterschiedliche Verrechnungsmethoden bei der Korrelation zugrunde liegen - aber so riesig? #PsychChatter #psychology #poweranalysis #RStats #GPower
May 4, 2026 at 1:15 PM
meine mixed ANOVAs brauchen für kleinen Effekt >2000 Tn (webPower Paket) und für für einen mittleren Effekt gemäß Cohen N = 416 .... aber GPower spuckt bei Standard Effektgrößenspezifikation (as gPower3.0 ) N = 34 (je 17 pro Gruppe) aus und wenn ich auf Cohen setze N = 128 😵‍💫 #PsychChatter
May 4, 2026 at 1:13 PM
😂 But don't worry, Gpower said it was fine!
June 2, 2026 at 6:33 PM
Can't say that I've compared them in detail, but I find {pwr} to be "Gpower in R". It's just as obscure on what it's reporting and people make the same mistakes, but pretend it's better. The output from {pwrss} is clearer (e.g. separate estimates for n 1 and 2). But I just liked the vignettes page.
September 17, 2025 at 6:35 AM
That 'someone' could also scrape all articles where authors used that #GPower dialogue to calculate the sample size for a randomised study with pre-post assessments, but then conduct a (version of the) t-Test on post-measures only as hypothesis test 😅

#SampleSize calculations are hard

#RCT #Trials
Too Hard GIF
ALT: Too Hard GIF
media.tenor.com
July 3, 2024 at 3:34 PM
As an editor and reviewer, I’m still seeing GPower being used to estimate sample size for a within- x within-subjects interaction, which it can’t do. That message should be made clearer within the app and documentation.
June 24, 2024 at 10:36 AM
I looked into this two years ago and concluded that GPower cannot do this power calculation (2x2 W-S). Daniel Lakens has a shinny app that can do it (but there is a parameter [correlation between measures] which gives a lot of flexibility).
September 19, 2025 at 11:11 AM
La GPower M3 GT2 S Hurricane : Une supercar à la puissance démesurée. #GPower #BMW #BMWm3 #photoscar
www.photoscar.fr/gpower-bmw-m...
GPower BMW M3 GT2 S Hurricane - Moteur V8 4,5 l de 720 ch
Le G-Power BMW M3 GT2 S Hurricane produit un énorme 720 ch (529 kW) à 7 800 tr / min et 650 Nm de couple à 3 900 tr / min. Photoscar
www.photoscar.fr
March 2, 2025 at 4:07 PM
"for novel effects ...built upon existing ones, a little reasoning can [reveal] the ...size of the new one. That’s the good news. The bad news is: you’re usually going to need a much bigger sample to get decent power than GPower alone will suggest."...
November 8, 2024 at 8:16 AM
Social psychologists: "GPower suggested a sample size of ___ for 80% power to detect a ____ effect size...."

Also social psychologists: "That's the only mention of effect sizes in this paper. We don't report or infer anything from effect sizes cuz p-values are all that matter."
November 8, 2024 at 2:38 AM
¿Quieres un superdeportivo sin sacrificar el lujo? El BMW M8 modificado por G-Power tiene más de 800 caballos y prestaciones brutales. 🚗💨 #BMWM8 #GPower
BMW M8 by G-Power: cuando la potencia supera a los superdeportivos
El BMW M8 siempre ha sido un vehículo que mezcla el lujo con prestaciones deportivas. Sin embargo, cuando G-Power pone sus manos sobre este modelo, las expectativas se elevan al nivel de los superdeportivos más exclusivos. La propuesta del preparador alemán no solo mejora la estética, sino que también transforma el rendimiento dinámico del M8 en algo prácticamente inigualable dentro de su categoría.
universomotor.com
October 13, 2025 at 3:02 PM
¿Necesitas 325.000 euros para tener un superdeportivo? G-Power dice que no: con 112.000 euros, un BMW M4 modificado supera al Mustang GTD. La ingeniería alemana vuelve a sorprender. 🚗💨 #GPower #BMW
G-Power transforma el BMW M4 Competition
El mundo del tuning ha dado un giro inesperado gracias a G-Power, el especialista bávaro que ha conseguido transformar un BMW M4 Competition en un monstruo capaz de superar al exclusivo Ford Mustang GTD. La fórmula es sencilla pero revolucionaria: invertir 42.000 euros en modificaciones sobre un M4 base valorado en 70.000 euros, logrando un vehículo con 720 CV y una velocidad máxima de 330 km/h, superando los 325 km/h del Mustang GTD a pesar de su menor potencia.
universomotor.com
August 31, 2025 at 3:01 PM
El BMW XM de G-Power no es un SUV, es un gigante con 937 caballos y estilo Mansory. ¿Listo para romper todos los límites? 🚙💨 #GPower #BMWXM
G-Power transforma el BMW XM en un monstruo de 937 caballos
G-Power ha decidido poner su sello en el BMW XM, el todoterreno de alto rendimiento de la marca bávara. El resultado es un vehículo que combina la potencia de un ferrocarril con la elegancia agresiva de un superdeportivo. Este proyecto, presentado como una pieza única, demuestra que incluso en un mercado saturado de SUVs potentes, siempre hay espacio para la innovación extrema.
universomotor.com
August 4, 2025 at 3:02 PM
CPSC Warns Consumers to Stop Using Gpower Youth ATVs Immediately Due to Risk of Serious Injury or Death from Crash and Laceration Hazards; Violates Mandatory Standard for All-Terrain Vehicles
www.cpsc.gov/Warnings/202...
CPSC Warns Consumers to Stop Using Gpower Youth ATVs Immediately Due to Risk of Serious Injury or Death from Crash and Laceration Hazards; Violates Mandatory Standard for All-Terrain Vehicles
www.cpsc.gov
March 27, 2026 at 7:28 PM
And the errors it makes are so blatant. Eg if I use “within-between interaction” for a 2x2 design, GPower says I have much greater power than for the same sample size for an independent t-test, even tho they are doing same thing (interaction is just a t-test of the within-subs difference scores).
September 19, 2025 at 7:23 AM