Published October 3, 2026 | Version 2
Dataset Embargoed

Evidence files for "What Should a Play Material Make Easy? A Structured Review of Sequence and Contingency Evidence for the Second and Third Years"

Creators

  • 1. İstanbul Üniversitesi-Cerrahpaşa

Contributors

  • 1. İstanbul Esenyurt Üniversitesi

Description

This dataset documents every classification and evidential judgement reported in a structured review of play materials for children aged approximately 12 to 36 months. The review compares two alternatives to age grading, organising a material around the child's position within a declared skill and organising it around the adult's capacity to respond contingently, and proposes the Holistic Rhythmic Development (HRD) framework.

The files contain the classification of ten skills under quantitative thresholds, the studies used for sequence, contingency, interactional timing and material structure with their designs and labels, the framework elements, the complete search log with every query and the number of records returned, the screening decisions, a decision log of all revisions, documented gaps, the sources not relied upon, and the reference list with DOIs. See README.md for the evidential rule and the provenance of the search log.

Version 2 replaces version 1 in full. The changes are listed in 05_decision_log.csv and in README.md.

Files

Embargoed

The files will be made publicly available on April 3, 2027.

Reason: The files document the evidence base of a manuscript intended for journal publication. They will be opened on the embargo date or on acceptance of the manuscript, whichever is earlier, and are available to editors and reviewers on request.