Sound Advice: A Multi-Dimensional Analysis of Hearing Conservation, Knowledge, Behaviors, and Laboratory Safety Culture Among Agricultural Mechanics Teachers

Abstract

Agricultural mechanics laboratories pose a continuous acoustic hazard to teachers in the field. Nevertheless, the profession continues to experience a recurring cycle of silence concerning audiological safety. This three-article dissertation examined the technical, behavioral, and cognitive barriers to hearing conservation among agricultural mechanics instructors. Article One employed a quantitative survey targeting two distinct cohorts of agricultural mechanics educators: a group from Georgia (n = 97) and a second group comprising teachers whose teams qualified for the National Agricultural Mechanics Contest at the 98th National FFA Convention and Expo (n = 32). The purpose was to evaluate their technical understanding of sound levels. The findings revealed a significant calibration error, as teachers consistently underestimated tool decibel (dBA) levels while overestimating safe exposure durations in accordance with NIOSH guidelines. Article Two analyzed the Modeling Paradox within the same cohorts. Results indicated that educators uphold high safety standards in professional environments where students are present; however, they often neglect the use of personal protective equipment (PPE) in non-professional settings. This observation implies that safety is predominantly regarded as a professional obligation rather than an internalized personal value. Article Three examines the cohort's understanding of health literacy, emphasizing the relationship between noise-induced hearing loss (NIHL) and cognitive decline associated with dementia. The results demonstrate that the majority of respondents maintained a neutral position on this correlation, while the national cohort recorded no responses in the 'Strongly Agree' category regarding the connection between NIHL and cognitive decline. The lack of awareness of long-term neurological repercussions represents a substantial barrier to behavioral change. Recommendations include shifting professional development from traditional PPE Training towards comprehensive health literacy advocacy. By integrating neurological outcomes into safety discussions, the profession can transition from mere compliance to building a culture of conviction, ultimately protecting the long-term health of agricultural teachers. Creating a healthy work environment is critical for increasing teacher longevity and success (Clemson et al., 2020).