Publications
This study compared two expectancy-value-theory-based interventions designed to promote college students' motivation and performance in introductory college physics. The utility value intervention was adapted from prior research and focused on helping students relate course material to their lives in order to perceive the material as more useful. The cost reduction intervention was novel and aimed to help students perceive the challenges of their physics course as less psychologically costly to them. Students (N = 148) were randomly assigned to the utility value intervention. cost reduction intervention, or a control condition. Participants completed intervention or control activities online at 2 points during the semester. Their motivational beliefs and values were measured twice, once immediately after the intervention or control activities ended and again at the end of the semester. Both interventions improved students' grades and exam scores relative to the control group (ds from 0.24-0.30), with stronger effects for students with lower initial course exam scores (ds from 0.72-0.90). Unexpectedly, both interventions' effects were explained in part by initially lower performing students reporting higher competence-related beliefs and lower cost immediately after they received either intervention compared with lower performing students in the control condition. Results suggest that cost reduction and utility value interventions are both useful tools for improving students' science, technology. engineering, and mathematics course performance.
This study tested whether creating drawings helps students generate higher-quality oral explanations during learning by teaching, thereby enhancing learning outcomes. 120 college students studied a scientific text about the human respiratory system. Students then either taught the material on video to a fictitious peer by orally explaining (explain-only), creating drawings (draw-only), or creating drawings while orally explaining (explain-and-draw). A control group of students spent the same amount of time restudying the lesson (restudy). One week later all students completed a posttest consisting of retention, transfer, and drawing questions. All three teaching conditions significantly outperformed the restudy condition on the posttest (d's ranging from.80 to 1.46). Critically, the explain-and-draw group also significantly outperformed the explain-only (d = .99) and the draw-only (d = .65) groups. Consistent with our primary hypotheses, the explain-and-draw group produced more elaborative oral explanations than the explain-only group, which partially explained the benefits of drawing while explaining on learning outcomes. Overall, this study demonstrates that drawing facilitates explaining and enhances the effectiveness of learning by teaching.
This study explored ways to foster generative learning during a narrated video lesson about the human kidney. In a 2 x 3 between-subjects design, 196 college students were randomly assigned to a video format condition and a learning strategy condition. Students listened to oral explanations from the instructor as they viewed either a series of static diagrams (static visuals) or the same diagrams dynamically drawn on the screen without the instructor visible (instructor-generated visuals). After each part of the lesson, students either wrote verbal explanations (explain) or created drawings (draw), or they rewatched that part of the lesson (rewatch). All students then completed retention and transfer tests on the material. Results indicated a significant main effect of learning strategy for retention and transfer: the explain group significantly outperformed the draw group (retention: d =.60; transfer: d =.67) and the rewatch group (retention: d =.58; transfer d =.87). There was also a significant video format by learning strategy interaction for transfer: explaining was most effective for students who observed instructor-generated visuals (ds > 1.0) rather than static visuals (ds <.5). These findings suggest that when learning from narrated video lessons with complex diagrams, students benefit most from viewing dynamically generated drawings and then verbally explaining what they learned. In contrast, creating drawings may not be appropriate for learning from diagram-heavy lessons. Overall, this study demonstrates the importance of aligning instructional methods with appropriate learning strategies.
This study examines the role of spatial reasoning in learning among 5th and 6th grade students participating in a set of in-school, technology-enhanced, STEAM (science, technology, engineering, arts, and math) making activities. We focus our analysis on a particular type of reasoning: spatial reasoning. Prior research has shown that spatial reasoning is relevant for problem-solving, participation, and achievement in STEAM disciplines. However, the literature on spatial reasoning lacks qualitative analyses of the processes through which spatial reasoning is learned, enacted, and leads to problemsolving insights, particularly in everyday learning contexts. Spatial reasoning is also underemphasized and undervalued in our schools. And although increasingly popular, hands-on, making activities have the potential to cultivate spatial skills, spatial reasoning has been largely ignored in the literature on learning through making. Informed by a distributed cognitive perspective and using a combination of qualitative categorical coding and interaction analysis, this study provides a qualitative analysis of the relation between spatial reasoning and learning through making. Our analyses show that during making activities, students engaged in frequent and diverse spatial reasoning with a variety of social and material resources and that the social and material contexts of different making activities facilitated different types of spatial reasoning. Our analyses also show how spatial reasoning developed over time and led to learning.
Understanding and remedying women's underrepresentation in majority-male fields and occupations require the recognition of a lesser-known form of cultural bias called masculine defaults. Masculine defaults exist when aspects of a culture value, reward, or regard as standard, normal, neutral, or necessary characteristics or behaviors associated with the male gender role. Although feminist theorists have previously described and analyzed masculine defaults (e.g., Bem, 1984; de Beauvoir, 1953; Gilligan, 1982; Warren, 1977), here we define masculine defaults in more detail, distinguish them from more well-researched forms of bias, and describe how they contribute to women's underrepresentation. We additionally discuss how to counteract masculine defaults and possible challenges to addressing them. Efforts to increase women's participation in majority-male departments and companies would benefit from identifying and counteracting masculine defaults on multiple levels of organizational culture (i.e., ideas, institutional policies, interactions, individuals).
Category learning is a core component of course curricula in science education. For instance, geology courses teach categorization of rock types. Using the educationally authentic rock categories. the current project examined whether category learning at a broad-level (BL; igneous, sedimentary, and metamorphic rocks) could be enhanced by learning category information at a more specific-level (SL; e.g., diorite under igneous, breccia under sedimentary, etc.). Experiments 1 and 2 showed that SL training was inferior to BL training when participants were required to respond at the BL regardless of whether BL and SL category labels were presented simultaneously during classification training or SL categories were learned initially followed by training on the specific-broad level name associations. However, Experiments 3 and 4 showed that SL training was as good as BL training when the training was more extensive and participants were allowed to respond at the trained level. By considering confusion matrices (i.e., probabilities that instances in a given category was erroneously classified as belonging to other categories). we conjectured that between-SL category similarity, specifically the degree to which similar-looking SL categories belong to the same BL category, is an important factor in determining the efficacy of SL training.
During mind wandering, visual processing of external information is attenuated. Accordingly, mind wandering is associated with changes in gaze behaviors, albeit findings are inconsistent in the literature. This heterogeneity obfuscates a complete view of the moment-to-moment processing priorities of the visual system during mind wandering. We hypothesize that this observed heterogeneity is an effect of idiosyncrasy across tasks with varying spatial allocation demands, visual processing demands, and discourse processing demands and reflects a strategic, compensatory shift in how the visual system operates during mind wandering. We recorded eye movements and mind wandering (via thought-probes) as 132 college-aged adults completed a battery of 7 short (6 min) tasks with different visual demands. We found that for tasks requiring extensive sampling of the visual field, there were fewer fixations, and, depending on the specific task, fixations were longer and/or more dispersed. This suggests that visual sampling is sparser and potentially slower and more dispersed to compensate for the decreased sampling rate during mind wandering. For tasks that demand centrally focused gaze, mind wandering was accompanied by more exploratory eye movements, such as shorter and more dispersed fixations as well as larger saccades. Gaze behaviors were not reliably associated with mind wandering during a film comprehension task. These findings provide insight into how the visual system prioritizes external information when attention is focused inward and indicates the importance of task demands when assessing the relationship between eye movements, visual processing, and mind wandering.
What maximizes instructional impact in early childhood? We propose a simple intervention employing Pedagogical Questions. We explore whether swapping some instructional language with questions in psychosomatic storybooks improves preschoolers' memory, learning, and generalization. Seventy-two preschoolers were randomly assigned to one of three conditions and were read storybooks employing either Direct Instruction, Pedagogical Questions, or Control content. Posttest measures of psychosomatic understanding, judgments about the possibility of psychosomatic events, and memory for storybook details showed that children in the Pedagogical Questions condition demonstrated greater memory for relevant storybook details and improved psychosomatic understanding. Our results suggest that pedagogical questions are a relatively simple educational manipulation to improve memory, learning, and transfer of theory-rich content.
Purpose: Elementary school students are expected to participate in science learning settings that place high demands on skill with certain types of grammatical structures, including complex sentences. This research note aims to clarify the types of complex sentences that are evident in a general education science curriculum across the elementary school years in order to assist clinicians and others in better understanding the specific language demands of science learning in the classroom. Method: I analyzed all sentences within children's texts and suggested teacher scripting from the first-, third-, and fifth-grade science units of a commonly used general education curriculum aligned to the Next Generation Science Standards. We determined the frequency and type of complex sentences that were present for each type of material (text, teacher scripts) and grade level. Results: Complex sentences are evident in both children's texts and suggested scripting provided to teachers at all grade levels. The rate of complex sentences in children's readings is higher in third- and fifth-grade texts than in first-grade texts. Complement clauses are common throughout, and adverbial and relative clauses are more frequent in third- and fifth-grade texts than in first-grade texts. Conclusions: Children are expected to read and listen to complex sentences across the elementary school years. Speech-language pathologists should be aware of the language demands that general education science curricula may pose to students at different ages.
Abstract Many studies have claimed to find that reading fiction leads to improvements in social cognition. But this work has left open the critical question of whether any type of narrative, fictional or nonfictional, might have similar effects. To address this question, as well as to test whether framing a narrative as fiction matters, the current studies presented participants ( N = 268 in Study 1; N = 362 in Study 2) with literary fiction texts, narrative nonfiction texts, expository nonfiction texts, or no texts. We tested their theory-of-mind abilities using the picture-based Reading the Mind in the Eyes task and a text-based test of higher-order social cognition. Reading anything was associated with higher scores compared to reading nothing, but the effects of framing and text type were inconsistent. These results suggest that prior claims regarding positive effects of reading fiction on mentalizing should be seen as tenuous; other mechanisms may be driving previously published effects.


