Previous reports using stimulus intensity changes to disrupt temporal discrimination have shown shifts in the psychophysical curve for time, while studies using other disruptors have shown a flattening of the curve. The current study investigated the impact of increases and decreases in stimulus intensity on temporal discrimination in pigeons, to…

It is commonly assumed that people make intertemporal choices by "discounting" the value of delayed outcomes, assigning discounted values independently to all options, and comparing the discounted values. We identify a class of anomalies to this assumption of alternative-based discounting, which collectively shows that options are not treated…

The photoelectric effect was discovered in the 19th century by Heinrich Hertz. It is interesting to note that the same scientist showed experimentally the wave nature of light, and thereby vindicated Maxwell's wave theory, and discovered the effect in which light shows corpuscular behavior. This paper describes a simple demonstration, enabling one…

The effectiveness of a fixed-ratio (FR) escalation procedure, developed by Pinkston and Branch (2004) and based on interresponse times (IRTs), was assessed during lever-press acquisition. Forty-nine experimentally naive adult male Long Evans rats were deprived of food for 24 hr prior to an extended acquisition session. Before the start of the…

We report four experiments examining effects of instance similarity on the application of simple explicit rules. We found effects of similarity to illustrative exemplars in error patterns and reaction times. These effects arose even though participants were given perfectly predictive rules, the similarity manipulation depended entirely on…

Since the late 1970s numerous studies have explored students' approaches to learning (referred to as the "SAL" tradition). These studies have provided valuable evidence of students' study strategies and intentions at the university. Since extensive research already exists on students' approaches to learning, there is a need to move…

The qualitative study reported here assessed the needs of agents related to new agent professional development to improve the current model. Agents who participated in new agent professional development within the last 5 years were selected to participate in focus groups to determine concerns and continued needs. Agents enjoyed networking and…

The language that students are learning in mathematics classrooms is intimately tied to the mathematics they are learning. The goal for any lesson or unit is for all students to be able to understand the mathematics they read or hear and be able to speak and write about that mathematics. Structured vocabulary placement can support that dual…

Major educational initiatives in the world place great emphasis on fostering rich computer-based environments of assessment that make student thinking and reasoning visible. Using thinking tools engages students in a variety of critical and complex thinking, such as evaluating, analyzing, and decision making. The aim of this study was to explore…

This study examines the dynamics of the first-time teaching experience of graduate instructors, drawing on interview and focus group data from 35 sociology students in a doctoral program at a large university in the United States. Results indicate the majority of graduate instructors felt a great deal of anxiety due to challenges they faced when…

Injunctive norms, or perceived peer approval of drinking is a potentially important influence on college student drinking. Few studies on college student drinking have attended to injunctive norms during the first few months of college. Longitudinal data from 534 first semester freshmen are used to describe the contributions of injunctive norms to…

In recent years, inquiry-based science instruction has become widely advocated in science education standards in many countries and, hence, in teacher preparation programmes. Nevertheless, in practice, one finds a wide variety of science instructional approaches. In South Africa, as in many countries, there is also a great disparity in school…

The use of a school wide positive behavior intervention and support (PBIS) framework is well established as a beneficial model for the majority of students taught in general education classrooms (e.g., Bradshaw, Mitchell, & Leaf, 2010). Some students, whether at-risk for or school-identified with emotional behavioral disorders (EBD) or other…

This paper explores teachers' perspectives on the management of mandated educational change in order to understand how it may be managed more effectively. A case study of teachers' responses to the introduction of a quality teaching initiative in two New South Wales schools found that while some teachers described the strong negative impact of…

The purpose of this study was to provide three construct validity evidence for using fitness center attendance electronic records to objectively assess the frequency of leisure-time physical activity among adults. One hundred members of a fitness center (45 women and 55 men; aged 18 to 64 years) completed a self-report leisure-time physical…