From Perceived Design Affordance to Fear Reduction_Documents Related to the Experimental Procedure

This repository provides the full dataset and analysis pipeline for a study on children\u2019s perceived design affordance (PDA), fear, and approach behaviour in pediatric imaging environments (e.g., CT rooms). Data were collected in five hospitals from N=157 children (151 valid cases) aged 3\u201312 years, their accompanying parent, and a tri-source subsample with observer ratings. The children\u2019s questionnaire includes 45 items organised into nine design dimensions (A\u2013I) with four positive affordance facets (Comprehensibility, Controllability, Affinity, Playfulness) and one fear item per dimension, plus five items on overall approach\/willingness to engage. Pre-computed composites include child PDA and fear means, with additional variables for age group, gender, hospital, and prior negative medical experience. The parent questionnaire contains 12 items indexing proxy fear\/adjustment judgements, while the observer shorthand file codes on-site behaviour (approach, hesitation, need for soothing, compliance). Together, the three linked tables support reliability testing, within-child comparisons across design dimensions, convergent validity across sources, and regression models predicting approach from PDA, fear, and background factors, and they enable extended secondary analyses on pediatric environmental design and affect.

本代码仓库提供了一项针对儿科影像检查环境（如CT扫描室）中儿童感知设计可供性（Perceived Design Affordance，PDA）、恐惧情绪与趋近行为的研究的完整数据集与分析流程。本研究数据采集自5家医院，共纳入157名3至12岁儿童（有效样本151例）及其陪同家长，同时包含一个带有观察者评分的三源子样本。儿童问卷共包含45个条目，被划分为9个设计维度（A至I），其中设置了4个正向可供性维度：可理解性（Comprehensibility）、可控性（Controllability）、亲和性（Affinity）、趣味性（Playfulness），每个维度对应1个恐惧相关条目，另外还有5个条目用于评估整体趋近行为与参与意愿。预计算的复合得分包含儿童PDA得分与恐惧得分均值，同时附带年龄分组、性别、所属医院、既往负面就医经历等额外变量。家长问卷包含12个条目，用于评估代理性恐惧与适应判断；观察者速记记录表则对现场行为进行编码，涵盖趋近行为、犹豫表现、安抚需求与依从性。这三个关联数据表可支持信度检验、不同设计维度下的儿童内比较、多源数据的聚合效度检验，以及基于PDA、恐惧因素与背景变量预测趋近行为的回归模型构建；同时还可用于开展儿科环境设计与情感反应相关的拓展性二次分析。