Attachment theory proposes that early parent-child relationships provide the basis for all future close relationships of the individual, through childhood and adolescence into later life. The purpose of the present study was to examine the relationship between parental attachment, peer attachment and students' perceptions of their teacher's…

In this study, structural equation modeling (SEM) is applied to an instrument assessing students' understanding of chemical change. The instrument comprised items on understanding the structure of substances, chemical changes and their interpretation. The structural relationships among particular groups of items are investigated and analyzed using…