PROMIS EC Wave 2

These data are from Wave 2 data collection for the PROMIS Early Childhood (EC) Parent Report measure development and validation study (see Cella, Blackwell, & Wakschlag, 2022 for overview). Wave 2 data were collected via Ipsos using their probability-based nationally representative online survey panel. The overall aim of Wave 2 data collection was to finalize item calibration and establish norms. Data were collected from n=1,057 parents of children ages 1-5 years. For measures consisting of more than 8 items, an 8-item short form was administered. All parents completed all items. See Lai et al., 2022 for an overview of the sample and psychometric methods.本数据集源自PROMIS儿童早期（Early Childhood, EC）家长报告量表开发与验证研究的第二波数据采集工作（研究概况详见Cella、Blackwell与Wakschlag于2022年发表的综述）。第二波数据由益普索（Ipsos）通过其基于概率抽样的全国代表性在线固定调查面板完成采集。本次采集的核心目标为完成项目校准（item calibration）并建立常模（norms），共纳入1057名1至5岁儿童的家长作为研究对象。对于包含8个以上项目的量表，采用8条目简版进行施测，所有参与研究的家长均完成了全部项目作答。关于研究样本与心理测量学方法的概况，详见Lai等人2022年的相关研究。