Victor Xav ⌬

professor de quimica

[Victor Xav ⌬ @GapeRooners]

@SentryDusk @ShitpostRock It’s bizarre that transgenderism is the only socially accepted pseudoscience, even though it is based solely on lies and the bastardization of language.

[Sammy @NeuroSGS]

Do transgender persons show sex atypical brains?

Many people suggest that trans people have brains more inline with their desired gender, and this causes feelings of gender incongruence.

However, if we take a closer look, we see some important underlying issues.

[Victor Xav ⌬ @GapeRooners]

@NeuroSGS That's very simple, everyone knows that what makes a woman's brain... it's pink and fluffy.

[Victor Xav ⌬ @GapeRooners]

@_BedroomGhost @isgaldemsugar @Senevigrof @melisilawi In other words, transsexuals are men with a completely distorted self-perception.

[Victor Xav ⌬ @GapeRooners]

@_BedroomGhost @isgaldemsugar @Senevigrof @melisilawi And within this group, there is no difference compared to heterosexual men except for a part related to self-perception, which is similarly present in anorexia.
https://t.co/Ao5Zh0W40n

[Victor Xav ⌬ @GapeRooners]

@sodaquail @mrslalique @uncanny_eli @elelolelole Three of them have a massive conflict of interest, one of them isn't even a scientific study and none of them have a quality of evidence higher than "low" according to the GRADE scale for causal claims.

[Victor Xav ⌬ @GapeRooners]

@sodaquail @uncanny_eli @elelolelole Ok
https://t.co/aPTMVErURM

[Victor Xav ⌬ @GapeRooners]

@_BedroomGhost @isgaldemsugar @Senevigrof @melisilawi Challenge, troon try not to be dishonest

[Adam Rochussen @AdamRochussen]

This is probably the worst p-hacking I’ve ever seen. Let’s go along with the validity of the “brain sex index”, for argument’s sake. The actual result shows that the men and the trans women did not significantly differ at all, but trans women and biological women did significantly differ. The authors just pretended otherwise via some insane statistical acrobatics.

They had three groups of 24 people each. The trans group is clearly not normally distributed (more on that later). They should have performed a Kruskal-Wallis test with Dunn’s multiple comparisons test. Instead, they did ANOVA and then *one-tailed* *unadjusted* t-tests for their post-hoc comparisons.

With this method, they found men vs trans women differed by d=0.64, p=0.016. But women vs trans women differed by d=1.87, p<0.001. So trans women are slightly more female than non-trans males. Narrative supported by data! Hooray! And to make it seem like it’s kind of half-way, they just give both of those p-values a single asterisk on the plot.

If they had instead done a two-tailed test, this doubles the p-value. And if they had done a Bonferroni correction for two comparisons, the p-value doubles again. They also should’ve done three comparisons really (men vs women isn’t tested in their paper—for no good reason), so triple instead of double the p-value.

So in reality, a proper analysis of their data without cherry-picking and biased hypothesis testing would’ve resulted in the difference between men and trans women being non-significant (p=0.096), but the difference between women and trans women remaining very significant (p<0.006). Narrative destroyed by data. Uh oh.

Going back to the squiggly distribution in the trans group. Of the 24 trans participants, 6 were androphiles (ie gay males), 18 were gynephiles (straight males). I don’t know for sure, because the authors didn’t share the underlying data, but it seems plausible that sexual attraction might be more important for their “brain sex index” than gender identity. We also don’t have sexual preference info for the non-trans groups, and in general the sample size is way too tiny to get fancy with multivariate analysis like this. It’s even too tiny for the main analysis: if someone wanted to replicate the d=0.64 difference properly, they’d need at least 53 people per group.

Anyways, if you want to support the wellbeing of trans people, which hopefully we all do, I don’t think twisting data to publish headline-grabbing fake conclusions is that way to go about it. It’s just going to make people irate when the statistical malpractice is pointed out, and then backfire on the trans “movement”. We really should stop attaching moral valence to data and stop trying to leverage the authority of science as a political tool.

[Victor Xav ⌬ @GapeRooners]

@absenteewarlord @justalexoki This gets even funnier when you remember that androphilic trans have feminine brains while gynophilic trans still have masculine brains.

[Victor Xav ⌬ @GapeRooners]

@justalexoki Tiny sample and Autism selection bias

[Victor Xav ⌬ @GapeRooners]

@FallOutBoymoder Small sample size and selection bias (most men who want to be women are autistic)

[Victor Xav ⌬ @GapeRooners]

@Hitchslap1 Small sample size and no control for autism.

[Victor Xav ⌬ @GapeRooners]

@rem8ana @Milo_H4 "Give me drugs so I can fulfill my sexual fetish, or I'll kill myself and it'll all be your fault."

[Victor Xav ⌬ @GapeRooners]

@mrstealyocoat @BorealisNorth5 @YourWaifu @Milo_H4 You forgot the gigachad image.

[Victor Xav ⌬ @GapeRooners]

@Aria4827 @Priceless1915 @Pareillia @dryrotter @IWllNvrBeAnEloi @The_Bunny_Doll @capridashsun You have reached the level of supreme sophistry.

[Victor Xav ⌬ @GapeRooners]

@Escobar02449431 @taipandotado141 @AsandoKaru98086 @mynameistoobad Quando estou em um campeonato de sofismo e meu oponente se chama é Heroidarwvolução:

[Victor Xav ⌬ @GapeRooners]

@Escobar02449431 @taipandotado141 @AsandoKaru98086 @mynameistoobad 1 - Defina intersexo

2 - A maioria esmagadora é portadora da hiperplasia adrenal congenita que é a que causa a genitalia ambigua, e ela pode causar desidratação severa e letal em bebês devido a perda de sais. Adultos tbm podem ter crises adrenais sob estresse.

[Victor Xav ⌬ @GapeRooners]

@Escobar02449431 @taipandotado141 @AsandoKaru98086 @mynameistoobad Nesse caso ele possui um sistema reprodutor totalmente voltado para a produção de gametas menores.

[Victor Xav ⌬ @GapeRooners]

@Escobar02449431 @taipandotado141 @AsandoKaru98086 @mynameistoobad O codigo não define o sexo por si só, ele apenas dita como as coisas devem acontecer. O SRY só tem a funcao de ativar genes autossomicos masculinizantes, o individuo se desenvolve normalmente como homem.

[Victor Xav ⌬ @GapeRooners]

@Escobar02449431 @taipandotado141 @AsandoKaru98086 @mynameistoobad Agora, fique a vontade para me mostra casos de pessoas "intersexo" que seus orgãos sexuais se desenvolvem voltados para a produção de um terceiro gameta.

[Victor Xav ⌬ @GapeRooners]

@Escobar02449431 @taipandotado141 @AsandoKaru98086 @mynameistoobad Onde eu disse que apenas o gameta é a unica coisa que importa? Quando eu era um bebê eu não produzia nenhum gameta, porém todo biologo saberia imediatamente que eu ainda era um macho, isso pq meus orgaos sexuais se desenvolveram voltados para a produção de gametas menores.