In this paper, the replication process is explored in an attempt to answer the question of which school resources help the learning of junior high school age students. In order to test a theory derived from data on 553 eighth grade students from 42 Philadelphia schools, three forms of replication are used, examining: (1) a larger, much less…

The importance of prior knowledge of informational content and organization for search performance on a database was evaluated for 17 undergraduates. Pretraining related to content, and information did facilitate learning logical search principles in a relational database; contest pretraining was more efficient. (SLD)