Institute for Fiscal Studies

A primer on power and sample size calculations for randomisation inference with experimental data

This paper revisits the problem of power analysis and sample size calculations in randomised experiments.
The Lancet

Effective sample size for individual risk predictions: quantifying uncertainty in machine learning models

Individual prediction uncertainty is a key aspect of clinical prediction model performance; however, standard performance metrics do not capture it. Consequently, a model might offer sufficient ...
ecommercefastlane

Cost of Goods Sold (COGS): Formula, Calculation & How to Reduce It

Cost of goods sold (COGS) is more than an accounting term—it’s a critical metric that directly measures your business’s production costs and impacts your profitability. Understanding and calculating ...
Hosted on MSN

Over 60? 5 Easy Formulas for Simple Casual Outfits You Should Know

Some say life begins at 60, and I’d argue that your best outfits might, too. There’s something about this stage in life that lets you lean fully into what works, what fits, and what feels right – not ...
Morningstar

Do Simple Stock-Picking Formulas Still Work?

Formula investing promises investors a systematic, rules-based approach to outperforming the market. In their December 2024 paper, Marcel Schwartz and Matthias Hanauer evaluated four of the most ...
Game Rant

Great Games That Make Perfect Use Of Simple Gameplay

Simple game designs can offer immediate fun and easy learning curves, catering to a wide range of gamers. Immersive horror experiences like Lethal Company excel with streamlined structures despite ...
Geeky Gadgets

This Excel Trick Will Change How You Use Formulas Forever

Have you ever stared at a tangled web of Excel formulas, wondering if there’s a better way to make sense of it all? For many, Excel’s LAMBDA function feels like a cryptic puzzle—powerful but ...
Frontiers

GSD-SSR: an integrated framework for power analysis in IRB proposals using group sequential design and sample size re-estimation

Accurate sample size estimation is a cornerstone of successful Institutional Review Board (IRB) proposals, as it establishes the feasibility of clinical studies and ensures they are sufficiently ...
The Lancet

Importance of sample size on the quality and utility of AI-based prediction models for healthcare

Copyright: © 2025 The Author(s). Published by Elsevier Ltd. Rigorous study design and analytical standards are required to generate reliable findings in healthcare ...
IEEE

Sample-Adjusted Threshold Calculation (SATC) for Optimizing Flood Mapping From a Trustworthy and Explainable Perspective

Abstract: Near-real-time flood maps are vital for efficiently coordinating emergency responses during flooding events. Synthetic aperture radar (SAR) satellite remote sensing, lauded for its capacity ...
Hosted on MSN

Quick Percentage Calculation Tips You’Ll Use Daily

Reactions pour in about ABC's suspension of Jimmy Kimmel's show Markets expected the rate cut, but the ‘real surprise’ is the Fed’s opinion on the current state of the economy, quant CEO says End Of ...