We present a detailed description of a Cryptography and Computer Security course that has been offered at Knox College for the last 15 years. While the course is roughly divided into two sections, Cryptology and Computer Security, our emphasis here is on the Cryptology section. The course puts the cryptologic material into its historical context…

Behavioral skills training (BST) is an evidence-based approach for training individuals to implement discrete-trial teaching procedures. Despite the effectiveness of this approach, implementing BST can be time and resource intensive, which may interfere with a clinical organization's adoption of this training format. We conducted a scoping review…

Mounting empirical support for early intensive behavioral intervention (EIBI) has increased demand for early intervention services for children diagnosed with autism spectrum disorder (ASD), which may include a variety of components such as discrete-trial instruction (DTI) or natural environment teaching (NET). Many caregivers are now learning…

Recommendations for achieving generalized instructional outcomes often overlook the capacity for generative learning for most verbally competent humans. Four children (ages 5-8) participated in this project. In Study 1, we provided decontextualized discrete trial teaching to establish arbitrary relations between colors, pictures of characters, and…

Discrete time models, one linear and one non-linear, are investigated, both with a herbivore species that consumes a basal food source species. Results are presented for coexistence of the species and to illustrate chaotic behaviour as parameters are varied in the non-linear model. The results indicate the benefit of fertilization in terms of the…

We present a concrete situation where there is a difference between the theoretical security of a cipher and its limitations when implemented in practice. Specifically, when entering a PIN, smudges on the keypad substantially reduce its security. We show how the number of possible keys in the presence of the "smudge attack" can be…

Much of the literature in library leadership and management focuses on strategies and practices based on discrete attributes and sweeping human behaviors intended to improve operational effectiveness. This paper challenges the reader to build a mindset for leadership that reflects the real world, where leaders and managers work within parameters…

A recurring question regarding Likert items is whether the discrete steps that this response format allows represent constant increments along the underlying continuum. This question appears unsolvable because Likert responses carry no direct information to this effect. Yet, any item administered in Likert format can identically be administered…

Inadequate compensation is often viewed as the root of teacher workforce challenges despite teacher reports that working conditions matter more. Using an original discrete choice experiment with a national sample of 1,030 U.S. teachers, we found that support staff--special education specialists, counselors, and nurses--play an essential role in…

Under federal law, parents have the right to decline, or waive, English language support services when their child is identified as an English learner (EL) in school. In this study, we focus on this important subgroup of ELs--referred to as waived ELs--at the understudied intersection of EL status and special education (SPED) status. Using…

Instructional coaching is increasingly regarded as an essential feature of professional development, but no research exists on content-specific instructional coaching for history teachers. The study examines data from a coaching program in which history teacher leaders served as novice coaches for their colleagues. We found that coached teachers,…

Spending time in nature during childhood can improve mental and physical health, support academic success, and cultivate pro-environmental attitudes and behaviors. Increasing outdoor time during school can enhance the likelihood of those outcomes for all students. However, in practice incorporating outdoor time into the school day can be…

Germany is a non-English speaking country with a large and growing number of incoming international degree-seeking students. However, their estimated dropout rates are high. This study aims to investigate whether specific challenges faced by international students (e.g., social and academic integration, language learning, financial situation,…

A Slinky is a loose helical coil spring and is a well-known educational toy. In this paper a model for a Slinky is presented. The Slinky is represented as a sequence of rigid half coils connected by torsional springs. A range of Slinky configurations in static equilibrium are calculated. Where possible the torsion spring model is compared with the…

Selecting a major is one of the most consequential decisions a student will make in college. Though major selection is often conceived of as a discrete choice made at a particular point in time, many students change their majors at least once during college. This article examines the process of changing majors as a key education transition.…