Evolutionary theory explains a wide range of biological phenomena. Proper understanding of evolutionary mechanisms such as natural selection is therefore an essential goal for biology education. Unfortunately, natural selection has time and again proven difficult to teach and learn, and students' resulting understanding is often characterized by…

Purpose: The purpose of the present study was to evaluate the new Cognitive Spare Capacity Test (CSCT), which measures aspects of working memory capacity for heard speech in the audiovisual and auditory-only modalities of presentation. Method: In Experiment 1, 20 young adults with normal hearing performed the CSCT and an independent battery of…

Presents two studies of thoughts in relation to viewing of expository television programs. Shows a close relationship between comprehension and thoughts, and demonstrates that expository television can engage viewers in deep cognitive activities. Finds different reception profiles among viewers, correlating closely with topic-relevant previous…

The act of communicating is not complete until the message is received and understood by the audience. This paper focuses on formulating messages for comprehensibility, in a discussion that is fundamentally applicable to all media. The ability to understand a verbovisual message depends on its readability, legibility, and its reading value.…

It is suggested that a reader's idea structure will affect processing of incoming information. Two aspects of the idea structure are further developed--the truth value aspect and the analytic level aspect. The idea structure can be characterized by ideas consisting of propositions which are considered to be more or less true or false (beliefs), or…

The purpose of this cross-national descriptive study is to measure the extent of children's sexual knowledge and sexual understanding at various ages and to identify what processes of thought children use in trying to explain biological functions and the phenomena of their own bodies as they grow and change. Sexual thinking is defined as thinking…