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Validation Of Hand-Held Bioelectrical Impedance Analysis For The Assessment Of Body Fat In Young And Old Adults, Lynn A. Wheeler
Validation Of Hand-Held Bioelectrical Impedance Analysis For The Assessment Of Body Fat In Young And Old Adults, Lynn A. Wheeler
Theses and Dissertations
Because of health concerns surrounding overweight and obesity, many individuals, health clubs, and physicians have begun using portable measures of body fat (BF) that are inexpensive and easy-to-use. Based on measures from these devices, health-related decisions are made and progress during fitness and/or dietary programs is tracked. However, accuracy of portable BF devices can be questionable, especially in free-living settings. Purpose: The purpose of this study is to evaluate the validity and reliability of a commercially-available, hand-held bioelectrical impedance analysis (BIA) device as a measure of BF during a controlled laboratory condition and a free-living condition. Methods: A total of …
The Measure And Instruction Of Scale In Introductory Chemistry, Karrie Linn Gerlach
The Measure And Instruction Of Scale In Introductory Chemistry, Karrie Linn Gerlach
Theses and Dissertations
As a student, it is fundamental to comprehend how small an atom or molecule is in order to truly understand how the world works. The American Association for the Advancement of Science (AAAS) has determined that scale is a critical theme that pervades through all areas of science and is critical to a deep understanding. This project determined that students, which are more proficient with scale and moving between the macroscopic and particle worlds, were better performers in chemistry classes. Interviews were used to determine what the students understood and what common misconceptions were present. These lead to the development …
Rapid Knowledge Assessment (Rka): Assessing Students Content Knowledge Through Rapid, In Class Assessment Of Expertise, Erin Margaret O'Connell
Rapid Knowledge Assessment (Rka): Assessing Students Content Knowledge Through Rapid, In Class Assessment Of Expertise, Erin Margaret O'Connell
Theses and Dissertations
Understanding how students go about problem solving in chemistry lends many possible advantages for interventions in teaching strategies for the college classroom. The work presented here is the development of an in-classroom, real-time, formative instrument to assess student expertise in chemistry with the purpose of developing classroom interventions. The development of appropriate interventions requires the understanding of how students go about starting to solve tasks presented to them, what their mental effort (load on working memory) is, and whether or not their performance was accurate. To measure this, the Rapid Knowledge Assessment (RKA) instrument uses clickers (handheld electronic instruments for …