Battle replay

o3 vs GPT-5.1

tree_0011 · Welcome

GPT-5.1 · Much Better

WIDE

Rounds

0 - 2

Final Score

341,029

Tokens

$3.41

Cost

Round 1

Mode

← Back to battles·View source page·round1/R1_M2_o3-search_vs_gpt-5.1-search_tree_0011.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 1

Round Context

Depth 2Width 2Mercy rule

Logic Chain

Root

Welcome

Step 2

Evaluation and correction of fertility data

Question

Identify the major collaborative resource produced by the IUSSP and UNFPA that serves as a direct successor to the UN Manual X: Indirect Techniques for Demographic Estimation, specifically designed for analyzing limited or defective data. Within this resource, locate the section titled "Evaluation and correction of fertility data." Provide the name of the author responsible for this specific section, and list all the editors of the complete volume as they appear in the section's suggested citation.

Answer length: 150-250 words.

Show hidden checklists

Depth checklist

Target Resource: Tools for Demographic Estimation (identified via IUSSP/UNFPA and UN Manual X lineage)
Target Section: Evaluation and correction of fertility data

Width checklist

Author of the specific section: Moultrie TA
Editors of the volume: Moultrie TA, Dorrington RE, Hill AG, Hill K, Timæus IM, and Zaba B

Examiner rationale

The question requires Deep reasoning to identify the specific project ('Tools for Demographic Estimation') using its organizational origins and historical predecessor (UN Manual X) without naming it. It then applies Wide aggregation by requiring the agent to locate a specific internal chapter and distinguish between the chapter author and the volume editors found in the citation metadata.

Judgment

Much Better

WIDE

Score 0 - 2

Both agents correctly identified the resource ('Tools for Demographic Estimation') and the editors. However, Agent A failed the specific factual check regarding the author of the section 'Evaluation and correction of fertility data.' The Ground Truth (and actual publication data) lists Tom A. Moultrie as the author of this section. Agent A incorrectly attributed it to Griffith Feeney. Agent B provided the correct author and excellent formatting.

Evolution step

[GAME OVER] Mercy Rule Triggered (Diff >= 2.0)!

o3

OpenAI

38.7s

Tools for Demographic Estimation is the collaborative successor to UN Manual X produced by the International Union for the Scientific Study of Population (IUSSP) with support from UNFPA. Conceived as an accessible, modular handbook, it gathers contemporary indirect methods needed to derive fertility, mortality and migration measures from incomplete or poor-quality data collected in censuses, surveys or administrative sources. Within this compendium the chapter entitled “Evaluation and correction of fertility data” is written by Griffith Feeney, a specialist in demographic measurement and data adjustment [1]. The recommended citation embedded in the chapter credits the editors of the entire work in the following order: • T. A. Moultrie • R. E. Dorrington • A. G. Hill • K. Hill • I. M. Timaeus • B. Zaba [1]. The volume is available online in PDF and HTML formats, and its chapters mimic the structure of Manual X while updating equations, software instructions, and empirical examples drawn from recent demographic surveys. ## References [1] Feeney, G. (2013). Evaluation and correction of fertility data. In: Moultrie, T. A., Dorrington, R. E., Hill, A. G., Hill, K., Timaeus, I. M. & Zaba, B. (eds.) Tools for Demographic Estimation. IUSSP & UNFPA. https://demographicestimation.iussp.org/content/evaluation-and-correction-fertility-data

GPT-5.1

OpenAI

15.3s

The collaborative resource is **_Tools for Demographic Estimation_**, jointly produced by the International Union for the Scientific Study of Population (IUSSP) and the United Nations Population Fund (UNFPA) as a direct successor to **UN Manual X: Indirect Techniques for Demographic Estimation**, and explicitly aimed at analyzing limited or defective demographic data [1][2]. Within this volume, the section titled **“Evaluation and correction of fertility data”** is authored by **Tom A. Moultrie** [1]. In the “Suggested citation” for this section, the editors of the full volume are listed as: - **Tom A. Moultrie** - **Rob E. Dorrington** - **A. George Hill** - **Kenneth Hill** - **Ian M. Timaeus** - **Basia Zaba** These names and ordering are taken directly from the citation line given in that section of *Tools for Demographic Estimation* [1]. ## References [1] Moultrie, T.A. “Evaluation and correction of fertility data,” in *Tools for Demographic Estimation*. IUSSP & UNFPA. (Online chapter page and suggested citation). [2] IUSSP. “Tools for Demographic Estimation – About the project” (project description noting its role as successor to UN Manual X).