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Christian Testa

Christian Testa

🔄 Data last refreshed 4 hours ago
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Every booking is a normal escrow-protected deal.

Followers
528
Account age
3 yrs
🧰 Free analysis for Christian Testa
🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

📊 Post engagement

8
Avg engagement / post
1.5%
Engagement vs followers
Nov 2022
On Mastodon since

🔥 Top post: Over the past couple of years, I've really fallen in love with # · 30 likes + reposts

📊 Activity & format

Posting cadence
0.18 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 8 text · 4 image · 0 video.
Follower / following
1.1×
Follows 492 back. A more reciprocal / networked account.
🔥 Top post Over the past couple of years, I've really fallen in love with #tikz and all of its quirks. TikZ is a plotting/graphics package for LaTeX that is especially useful for creating mathematical diagrams. The support for mathematical notation is unbeatable and the flexibility of t… ★ 30
I've been reading about missForest today MissForest—non-parametric missing value imputation for mixed-type data https://academic.oup.com/bioinformatics/article/28/1/112/219101 https://github.com/stekhoven/missForest Runs much faster tha… ★ 3 Is anyone in the US CDC / NIH even working on the Ebola Bundibugyo strain now? Over a year ago labs these were shuttered https://www.wired.com/story/hhs-niaid-irf-ebola-disease-research-stop/ We are losing so many years of critical resea… ★ 1 An enjoyable read I stumbled on https://www.ecologicalcitizen.net/pdfs/epub-139.pdf How solarpunk can help us rewild our lives Ana Sun and Susan Kaye Quinn #Solarpunk ★ 2 Some choice quotes on the topic of instrumental variables: From Swanson and Hernán 2014 > Imbens states we are “limited in the questions we can answer credibly and precisely.” We agree, but there are differences between the questions we ca… ★ 1 I’ve been trying to read more carefully about instrumental variables and make up my mind about when IV arguments are scientifically convincing. Here's a tension I keep running into: Should the scientific question alone determine the causa… ★ 2 Very proud to announce the first version of my new R package {nadir} was released today on CRAN! Check it out -- https://ctesta01.github.io/nadir/ {nadir} is a package for super-learning, which is ensemble weighting candidate machine le… ★ 7 https://hsph.harvard.edu/news/trump-administration-freezes-2-2-billion-in-grants-to-harvard/ Today basically every faculty I ran into at the Harvard School of Public Health told me they had their grants cancelled — for work they do towards… ★ 2 Link for those who are super curious: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0319074 ★ 1 My research assistant sure seems fond of generating high quality evidence for treat(ment effect)s 🐾 #dogsofmastodon ★ 27 I’d like to start a conversation about the #accessibility of math. Someday I aspire to be a professor, and I want to be inclusive to students of a wide range of backgrounds and experiences, but math (esp. advanced math) is full of details … ★ 9 Thanks everyone for the great comments! Some of the takeaways I'm hearing are: * dplyr/tidyverse ease of use comes at the trade-off of underlying complexity; So it's great/fine to use in data analysis scripts or projects, but viewed as… ★ 6

🐘 Community & instance

Home server
fediscience.org
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 8 views per post.
📤Posts about 0.2× per week.

🛡️ Audience credibility

89/100
Excellent Credibility score
99%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 99% real, active audience · Low fake-follower risk.
  • Strong engagement (~1.5% of followers engage each post) — an active, real audience.
  • Verified account.
  • Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Using mathematical models to advance health equity and health justice. PhD Student in Biostatistics at Harvard T.H. Chan School of Public Health. He/him ⧉ #rstats #CausalInference #SpatialStats #HealthJustice

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