Validation of Approaches to Studying Inventories in a Norwegian Context: In Search of “Quick‐and‐Easy” and Short Versions of the ASI

Four validation studies of different versions of the Approaches to Studying Inventory (ASI) were performed by means of exploratory and confirmatory factor analysis. Six samples of undergraduate students participated (N = 4,038), drawn from different bachelor programs in selected university college departments. The results gave limited support to the 18‐item ASI originally promoted by Gibbs et al. in 1988, whereas a modified version of the 32‐item edition showed acceptable psychometric properties, as did two shortened versions of the Approaches and Study Skill Inventory for Students (ASSIST). A restructured “quick‐and‐easy” 18‐item ASI emerged as reasonably valid and robust, and can be recommended as a research instrument and a practical evaluation tool in higher education. Considerations related to shortening the ASI are also discussed.     

基于MPEG-2TS的广播电台下游传输体系

广播电台传输音频信号至下游单位进行发射覆盖的传输链路具有数量众多、结构复杂、使用的技术不统一的特点。本文重点从MPEG-2音频编码技术出发,讲解了该编码下传输流TS的形成过程,介绍了基于MPEG-2TS流下广播电台采用的ASI光信号发送、E1、SDH等多种下游传输体系。