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This paper proposes three new measures of components STEM career preferences (affinity, certainty, and goal), and then explores which dimensions of "science learning activation" (fascination, values, competency belief, and scientific sensemaking) are predictive of STEM career preferences. Drawn from the ALES14 dataset, a sample of 2938 sixth and eighth grade middle-school students from 11 schools in two purposefully selected diverse areas (Western Pennsylvania & the Bay Area of California) was used for the analyses presented in this paper. These schools were chosen to represent socio-economic and ethnic diversity. Findings indicate that, overall, youth who are "activated" towards science learning are more likely to have affinity towards STEM careers, certainty about their future career goals, and have identified a specific STEM career goal. However, different dimensions of science learning activation are more strongly correlated with different aspects career preference across different STEM career foci (e.g. science, engineering, technology, health, etc.). Gender, age, minority status, and home resources also have explanatory power. While many results are consistent with prior research, there are also novel results that offer important fodder for future research. Critically, our strategy of measuring affinity towards the specific disciplines that make up STEM, measuring STEM and health career goals separately, and looking at career affinity and career goals separately, offers interesting results and underscores the value of disentangling the conceptual melting pot of what has previously been known as 'career interest.' Study findings also have implications for design of science learning opportunities for youth.

While motivational changes towards science are common during adolescence, our work asks which perceived classroom experiences are most strongly related to these changes. Additionally, we examine which experiences are most strongly associated with learning classroom content. In particular, using self-reports from a sample of approximately 3000 middle school students, this study investigates the influence of perceived science classroom experiences, namely student engagement and perceived success, on motivational change (fascination, values, competency belief) and content knowledge. Controlling for demographic information, school effects, and initial levels of motivation and content knowledge, we find that dimensions of engagement (affect, behavioural/cognitive) and perceived success are differentially associated with changes in particular motivational constructs and learning. Affective engagement is positively associated with motivational outcomes and negatively associated with learning outcomes, behavioural--cognitive engagement is associated only with learning, and perceived success is related only to motivational outcomes. Theoretical and practical implications are discussed.

Explicit reading strategies help low-knowledge readers make the inferences necessary to comprehend expository texts. Self-explanation is a particularly effective strategy, but it is challenging to monitor how well a reader is applying self-explanation without requiring the reader to externalise the self-explanations being generated. Studies have shown that different reading strategies vary in the amount of cognitive control required as well as the engagement of brain regions involved in internally-directed attention. Pupil diameter is related to task engagement and cognitive control via the brain's locus coeruleus-norepinephrine system. Therefore, pupil diameter could be a method to unobtrusively measure a reader's use of self-explanation. The current study assessed whether pupil diameter can be used to distinguish between the use of different reading strategies and whether it is linked to the quality and effectiveness of the strategy in terms of learning gains. Participants reread, paraphrased, and self-explained texts while pupil diameter was recorded, and completed comprehension tests. Average pupil diameter differed between all three reading strategies, and pupil diameter was related to learning gains and the quality of strategy use. The results suggest that pupil diameter could be used to track effective reading strategy utilisation.

Cumulatively, participation in optional science learning experiences in school, after school, at home, and in the community may have a large impact on student interest in and knowledge of science. Therefore, interventions can have large long-term effects if they change student choice preferences for such optional science learning experiences. To be able to track K-12 students' intentions to participate in optional science learning experiences, we developed a new measure of science choice preferences in early adolescence. The present study with 284 5th and 894 6th graders from diverse school contexts (i.e., from the Bay Area and the Pittsburgh area) illustrates the value of applying Item Response Theory analyses to develop a measurement instrument. These analyses established the overall reliability of the instrument and each item in the scale, as well as the generalizability of the scale and individual items across subgroups by gender, by ethnicity, and by achievement levels in science. Further, preferences to participate in science were shown to be separate from preferences to participate in mathematics, engineering, or medicine. Finally, the science choice preferences measure is validated through replicated positive correlations with levels of science interest, self-efficacy, and learning achievement.

Abstract: Educational robotics programs offer an engaging opportunity to potentially teach core computer science concepts and practices in K–12 classrooms. Here, we test the effects of units with different programming content within a virtual robotics context on both learning gains and motivational changes in middle school (6th–8th grade) robotics classrooms. Significant learning gains were found overall, particularly for groups introduced to content involving program flow, the structural logic of program execution. Relative gains for these groups were particularly high on items that require the transfer of knowledge to dissimilar contexts. Reaching units that included program flow content was also associated with greater maintenance of programming interest when compared with other units. Therefore, our results suggest that explicit instruction in the structural logic of programming may develop deeper transferrable programming knowledge and prevent declines in some motivational factors. [ABSTRACT FROM AUTHOR]