Education Commons^™

Sleep Habits Of High School Students: An Intervention To Improve Them, John Edward Wallace

Doctoral Dissertations

Adolescence is a time of tremendous growth: physically, cognitively, socially, and emotionally. Many experts state that good sleep habits are very important for adolescents and emotional well-being. The few studies of adolescents' sleep habits have reported that many high school-age students sleep less than eight hours when their bodies actually need nine hours a night. Research has found a relationship between shortened sleep duration and chaotic sleep patterns to overall poor school performance.

Sleep problems among adolescents have been found to be associated with anxiety, depression, inattentive behavior, social problems, aggressive behavior, and delinquency. Additional studies indicate that adolescents who …

The Effects Of Asymmetric Directional Microphone Fittings On Acceptance Of Background Noise, Jong Sik Kim

Doctoral Dissertations

The present study investigated the effects of asymmetric directional microphone fittings (i.e., an omnidirectional microphone on one ear and a directional microphone on the other) on speech understanding in noise and acceptance of background noise in 15 full-time hearing aid users. Subjects were fitted binaurally with four directional microphone conditions (i.e., binaural omnidirectional, asymmetric right directional, asymmetric left directional and binaural directional microphones) using Siemens Intuis directional behind-the-ear hearing aids and comply earmolds. The results revealed that speech understanding in noise improved when using asymmetric directional microphones compared to binaural omnidirectional microphone fittings and were not significantly hindered compared to …