Jamie DeCoster | The University of Virginia (original) (raw)

Papers by Jamie DeCoster

American Journal of Geriatric Psychiatry, Jul 1, 2014

Journal of Applied Developmental Psychology

Journal of Research on Educational Effectiveness, 2020

AERA Open, 2019

There is increasing interest in low-cost, scalable approaches that support parent engagement in t... more There is increasing interest in low-cost, scalable approaches that support parent engagement in their children’s learning at home. This study examined the impact of one such approach on pre-kindergarteners’ literacy development during an academic year in a suburban public school setting that prioritized enrollment for children living in poverty. Parents were randomly assigned within children’s classrooms to receive either: (a) a language and literacy text messaging program or (b) a health and well-being text messaging program. Unexpectedly, findings indicated that children entering the school year with higher skill levels benefited from the language/literacy program while those with lower initial skill levels benefited from the health/well-being program. Although this approach shows promise in impacting some children’s literacy skills, it is clear that “one size” does not fit all families and that some families may benefit from text messages on basic needs such as sleep, nutrition, ...

Journal of Experimental Child Psychology, 2020

Early Education and Development, 2018

Journal of Research on Educational Effectiveness, 2017

ABSTRACT This study examined fidelity of implementation in a randomized trial of Banking Time, a ... more ABSTRACT This study examined fidelity of implementation in a randomized trial of Banking Time, a classroom-based intervention intended to improve children's behavior, specifically for those at risk for developing externalizing behavior problems, through improving the quality of teacher–child interactions. The study sample comes from a randomized controlled trial that took place over three years and included 183 teachers and 470 preschool children recruited across three sites. Results exploring fidelity of implementation indicated that Banking Time practices were present across treatment and nontreatment groups. In addition, the presence of more Positive Banking Time Practices accounted for improvements in teacher–child interactions while Restricted Banking Time Practices showed inconsistent patterns, relating both to positive and negative teacher–child interactions. Further, random assignment to Banking Time resulted in the presence of more Positive Banking Time Practices and fewer Restricted Banking Time Practices, which accounted for the improved teacher–child interactions. Thus, findings point to the critical need to better account for intervention fidelity across conditions in randomized trials, allowing for better understanding of the mechanism through which interventions lead to intended outcomes.

Journal of Psychoeducational Assessment, 2016

The No Child Left Behind Act requires that 95% of students in all public elementary and secondary... more The No Child Left Behind Act requires that 95% of students in all public elementary and secondary schools are assessed in mathematics. Unfortunately, direct assessments of young students can be timely, costly, and challenging to administer. Therefore, policy makers have looked to indirect forms of assessment, such as teachers’ ratings of student skills, as a substitute. However, prekindergarten teachers’ ratings of students’ mathematical knowledge and skills are only correlated with direct assessments at the .50 level. Little is known about factors that influence accuracy in teacher ratings. In this study, we examine the influence of student and teacher characteristics on prekindergarten teachers’ ratings of students’ mathematical skills, controlling for direct assessment of these skills. Results indicate that students’ race/ethnicity and social competency, as well as teachers’ self-efficacy, are significantly related to prekindergarten teachers’ ratings of students’ mathematical sk...

Early Education and Development, 2015

ABSTRACT Research Findings: This study examined the impact of MyTeachingPartner–Math/Science, a s... more ABSTRACT Research Findings: This study examined the impact of MyTeachingPartner–Math/Science, a system of math and science curricula and professional development, on the quality of teachers’ interactions with children in their classrooms. Schools were randomly assigned to 1 of 2 intervention conditions (Basic: curricula providing within-activity, embedded teacher supports; Plus: curricula plus implementation support via online resources and in-person workshops) or to a Business-as-Usual (BaU) control condition. Results showed that teachers in the Basic and Plus conditions showed higher levels of Instructional Support and Facilitation of Mathematical and Scientific Thinking. Teachers in the Basic condition also showed higher levels of Emotional Support compared with teachers in the BaU condition. We did not find any significant differences between teachers’ interactions in the Basic and Plus conditions. Practice or Policy: Children are entering kindergarten unprepared in the areas of mathematics and science, largely as a result of inadequate exposure to early experiences and high-quality interactions in these domains. The results of this study suggest that providing teachers with math and science curricula that include embedded teacher supports can have an impact on the quality of their math and science instruction.

Journal of Applied Developmental Psychology, 2020

Journal of gerontological nursing, 2018

Adults who complete an advance directive (AD) are not consistently offered information about the ... more Adults who complete an advance directive (AD) are not consistently offered information about the risks, benefits, or alternatives (RBA) of the life-sustaining medical procedures addressed on standardized forms. The current article describes a new patient-centered nurse-supported advance care planning (NSACP) intervention focused on providing information about RBA of life-sustaining procedures. Fifty participants (mean age = 50.26 years) at a Veterans Affairs medical center were randomized to the NSACP intervention or a comparison condition. Before randomization, 78% (n = 39) expressed interest in RBA information. Of participants in the NSACP group, 94% (n = 30) completed an AD. Participants who received NSACP made more decisions to decline life-sustaining treatment than those who were randomized to the comparison group. Promising feasibility data include brevity (mean = 46 minutes), high patient satisfaction, participant retention, and treatment fidelity. The NSACP holds promise as ...

Science (New York, N.Y.), Jan 28, 2015

Reproducibility is a defining feature of science, but the extent to which it characterizes curren... more Reproducibility is a defining feature of science, but the extent to which it characterizes current research is unknown. We conducted replications of 100 experimental and correlational studies published in three psychology journals using high-powered designs and original materials when available. Replication effects were half the magnitude of original effects, representing a substantial decline. Ninety-seven percent of original studies had statistically significant results. Thirty-six percent of replications had statistically significant results; 47% of original effect sizes were in the 95% confidence interval of the replication effect size; 39% of effects were subjectively rated to have replicated the original result; and if no bias in original results is assumed, combining original and replication results left 68% with statistically significant effects. Correlational tests suggest that replication success was better predicted by the strength of original evidence than by characteris...

American Educational Research Journal, 2014

This randomized controlled field trial examined the efficacy of the Responsive Classroom ( RC) ap... more This randomized controlled field trial examined the efficacy of the Responsive Classroom ( RC) approach on student achievement. Schools ( n = 24) were randomized into intervention and control conditions; 2,904 children were studied from end of second to fifth grade. Students at schools assigned to the RC condition did not outperform students at schools assigned to the control condition in math or reading achievement. Use of RC practices mediated the relation between treatment assignment and improved math and reading achievement. Effect sizes (ES) were calculated as standardized coefficients. ES relations between use of RC practices and achievement were .26 for math and .30 for reading. The RC practices and math achievement relation was greater for students with low initial math achievement (ES = .89). Results emphasize fidelity of implementation.

Aging, Neuropsychology, and Cognition, 2012

This study examined the bizarre imagery effect in young and older adults, under incidental and in... more This study examined the bizarre imagery effect in young and older adults, under incidental and intentional conditions. Intentionality was manipulated across experiments, with participants receiving an incidental free recall test in Experiment 1 and an intentional test in Experiment 2. This study also examined the relation between working memory resources and the bizarreness effect. In Experiment 1 young and older adults were presented with common and bizarre sentences; they later received an incidental recall test. There were no age differences in sensitivity to the bizarreness effect in Experiment 1 when ANOVAs were used to analyze the data. However, when the bizarreness effect was examined in terms of effect size, there was evidence that younger adults produced larger bizarreness effect sizes than younger adults. Experiment 2 further explored age differences in sensitivity to the bizarreness effect by presenting young and older adults with bizarre and common sentences under intentional learning conditions. Experiment 2 failed to yield age differences as a function of item type (bizarre vs. common). In addition, Experiment 2 failed to yield significant evidence that the bizarreness effect is modulated by working memory resources. The results of this study are most consistent with the distinctiveness account of the bizarreness effect.

American Psychologist, 2015