Exploring Course Outcomes Utilizing a New Outward Bound Outcomes Instrument

This study implemented the new North Carolina Outward Bound School Course Impression Survey (NCOBSCIS) using a mixed method, retrospective pre-post design. The NCOBSCIS measures character development, leadership, and environmental service. Previous analysis has found the NCOBSCIS to be a valid and reliable survey tool. The purpose of this study was to investigate program outcomes using this new instrument, including potential moderators (e.g., age, gender, and course length). Paired sample t-tests and a series of ANCOVA models were generated along with thematic qualitative analyses. The results suggest that there is change evident among the participants following program participation and that this change is different dependent on various factors. Future research utilizing the NCOBSCIS should collect the pre data prior to the course, allowing true pre-post questions to be asked about change over time

The North Carolina Outward Bound School Course Impression Survey: A Psychometric Investigation

This study investigated the development and psychometric properties of the North Carolina Outward Bound School Course Impression Survey (NCOBSCIS). The NCOBSCIS measures character development, leadership, and environmental service, and was adapted from the previously established Outward Bound Outcomes Instrument (OBOI). The purpose of this study was to both conduct a psychometric evaluation of the NCOBSCIS and to also describe the processes that were used to develop and validate a series of outcome measures. These processes are applicable to other programs interested in measuring participant outcomes

“Natural” stress patterns and dependencies between edge alignment and quantity sensitivity

We conducted an artificial language learning experiment to study learning asymmetries that might reveal latent preferences relating to, and any dependencies between, the edge alignment and quantity sensitivity (QS) parameters in stress patterning. We used a poverty of the stimulus approach to teach American English speakers an unbounded QS stress rule (stress a single CV: syllable) and either a left- or right-aligning QI rule if only light syllables were present. Forms with two CV: syllables were withheld in the learning phase and added in the test phase, forcing participants to choose between left- and right-aligning options for the QS rule. Participants learned the left- and right-edge QI rules equally well, and also the basic QS rule. Response patterns for words with two CV: syllables suggest biases favoring a left-aligning QS rule with a left-edge QI default. Our results also suggest that a left-aligning QS pattern with a rightedge QI default was least favored. We argue that stress patterns shown to be preferred based on evidence from ease-of-learning and participants’ untrained generalizations can be considered more natural than less favored opposing patterns. We suggest that cognitive biases revealed by artificial stress learning studies may have contributed to shaping stress typology.publishedVersio

Peanut Performance and Weed Management in a High-residue Cover Crop System

Previous research has indicated that conservation tillage is a viable option for successful peanut production; however, interactions between cover crop residues and peanut growth are not fully understood. Additional information is needed about the effects of varying levels of cover crop biomass on peanut growth and development. Level of cover crop residue may also affect the preemergence herbicide activity through interception and efficacy of weed suppression. The objectives of this peanut research were to determine if varying amounts of cover crop biomass would affect peanut growth, herbicide interception, or weed control. This research also aimed to determine if cover crop management practices (rolling or standing cover) would affect herbicide interception rates. The study consisted of a rye (Secale cereale L.) cover crop planted at three different dates as well as a fallow treatment at two locations: Dawson, GA, and Headland, AL. Pendimethalin was applied PRE at 1 kg ai/ha across the entire area just prior to planting of the Georgia 03-L peanut variety. Soil samples were collected at three different dates after planting for high-pressure liquid chromatography (HPLC) analysis to determine pendimethalin levels. Peanut yields differed only between location regardless of cover crop residue level with the Headland, Alabama, site averaging 4,272 kg/ha and the Dawson, Georgia, site averaging 2,247 kg/ha. Pendimethalin extraction from soil samples indicated no difference in herbicide recovery between winter fallow systems compared to treatments with cover crops. Weed control ratings taken at 21 and 45 days after planting (DAP) showed greater weed suppression for cover crop systems for an extended period of time when higher levels of cover crop biomass are present. Results of this experiment indicate the inclusion of cover crops in a conservation-tilled peanut system can be a successful alternative to winter fallow systems without reducing peanut yield or herbicide efficacy