Search Results - "Opfer, John E."

Development of Spatial-Numerical Associations by McCrink, Koleen, Opfer, John E.

“…Links between spatial and numerical thinking are well established in studies of adult cognition. Here, we review recent research on the origins and development…”
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Early development of spatial-numeric associations: evidence from spatial and quantitative performance of preschoolers by Opfer, John E., Thompson, Clarissa A., Furlong, Ellen E.

“…Numeric magnitudes often bias adults’ spatial performance. Partly because the direction of this bias (left‐to‐right versus right‐to‐left) is culture‐specific,…”
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Cognitive mediators of US-China differences in early symbolic arithmetic by Opfer, John E, Kim, Dan, Fazio, Lisa K, Zhou, Xinlin, Siegler, Robert S

“…Chinese children routinely outperform American peers in standardized tests of mathematics knowledge. To examine mediators of this effect, 95 Chinese and US…”
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The Value of Numbers in Economic Rewards by Kanayet, Frank J., Opfer, John E., Cunningham, William A.

“…Previous work has identified a distributed network of neural systems involved in appraising the value of rewards, such as when winning $100 versus $1. These…”
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What makes relational reasoning smart? Revisiting the perceptual-to-relational shift in the development of generalization by Bulloch, Megan J., Opfer, John E.

“…Development of reasoning is often depicted as involving increasing use of relational similarities and decreasing use of perceptual similarities (‘the…”
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Cognitive support for political partisans' understanding of policy data by Yu, Shuyuan, Opfer, John E

“…Political partisanship might lead educated adults-even the highly numerate-to reason selectively about numbers that are relevant to and support their ideology…”
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Revisiting preschoolers’ living things concept: A microgenetic analysis of conceptual change in basic biology by Opfer, John E., Siegler, Robert S.

“…Many preschoolers know that plants and animals share basic biological properties, but this knowledge does not usually lead them to conclude that plants, like…”
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Using a Constructed-Response Instrument to Explore the Effects of Item Position and Item Features on the Assessment of Students' Written Scientific Explanations by Federer, Meghan Rector, Nehm, Ross H., Opfer, John E., Pearl, Dennis

“…A large body of work has been devoted to reducing assessment biases that distort inferences about students' science understanding, particularly in…”
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A Unified Framework for Bounded and Unbounded Numerical Estimation by Kim, Dan, Opfer, John E.

“…Representations of numerical value have been assessed by using bounded (e.g., 0-1,000) and unbounded (e.g., 0-?) number-line tasks, with considerable debate…”
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Compression Is Evident in Children's Unbounded and Bounded Numerical Estimation: Reply to Cohen and Ray (2020) by Kim, Dan, Opfer, John E.

“…Kim and Opfer (2017) found that number-line estimates increased approximately logarithmically with number when an upper bound (e.g., 100 or 1000) was…”
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Free versus anchored numerical estimation: A unified approach by Opfer, John E., Thompson, Clarissa A., Kim, Dan

“…•Rival estimation theories rest on data yielded by different methods.•Effects of anchors and sampling were tested in 2×2 design.•Free and anchored estimates…”
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Dynamics Versus Development in Numerosity Estimation: A Computational Model Accurately Predicts a Developmental Reversal by Kim, Dan, Opfer, John E.

“…Perceptual judgments result from a dynamic process, but little is known about the dynamics of number‐line estimation. A recent study proposed a computational…”
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Dynamics and development in number-to-space mapping by Kim, Dan, Opfer, John E.

“…•We examined how numerosity estimates were affected by previous testing trials.•Simulation showed dynamic response scaling can reduce compression.•First-trial…”
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How 15 Hundred Is Like 15 Cherries: Effect of Progressive Alignment on Representational Changes in Numerical Cognition by Thompson, Clarissa A., Opfer, John E.

“…How does understanding the decimal system change with age and experience? Second, third, sixth graders, and adults (Experiment 1: N = 96, mean ages = 7.9,…”
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Cognitive foundations for science assessment design: Knowing what students know about evolution by Opfer, John E., Nehm, Ross H., Ha, Minsu

“…To improve assessments of academic achievement, test developers have been urged to use an “assessment triangle” that starts with research‐based models of…”
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From integers to fractions: The role of analogy in transfer and long-term learning by Yu, Shuyuan, Sidney, Pooja, Kim, Dan, Thompson, Clarissa A., Opfer, John E.

“…•A short fraction intervention leads to substantial and enduring improvements in children’s comprehension of fractions.•Analogy between familiar and novel…”
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Children Are Not Like Older Adults: A Diffusion Model Analysis of Developmental Changes in Speeded Responses by Ratcliff, Roger, Love, Jessica, Thompson, Clarissa A., Opfer, John E.

“…Children (n = 130; M age = 8.51-15.68 years) and college-aged adults (n = 72; M age = 20.50 years) completed numerosity discrimination and lexical decision…”
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From Integers to Fractions: The Role of Analogy in Developing a Coherent Understanding of Proportional Magnitude by Yu, Shuyuan, Kim, Dan, Fitzsimmons, Charles J., Mielicki, Marta K., Thompson, Clarissa A., Opfer, John E.

“…Children display an early sensitivity to implicit proportions (e.g., 1 of 5 apples vs. 3 of 4 apples), but have considerable difficulty in learning the…”
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Representational change and children’s numerical estimation by Opfer, John E., Siegler, Robert S.

“…We applied overlapping waves theory and microgenetic methods to examine how children improve their estimation proficiency, and in particular how they shift…”
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The Development of Numerical Estimation: Evidence for Multiple Representations of Numerical Quantity by Siegler, Robert S., Opfer, John E.

“…We examined children's and adults' numerical estimation and the representations that gave rise to their estimates. The results were inconsistent with two…”
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