Vladimir Kogan

Institution: The Ohio State University


Michael T. Hartney, Vladimir Kogan.

School board candidates supported by local teachers' unions overwhelmingly win and we examine the causes and consequences of the "teachers' union premium" in these elections. First, we show that union endorsement information increases voter support. Although the magnitude of this effect varies across ideological and partisan subgroups, an endorsement never hurts a candidate's prospects among any major segment of the electorate. Second, we benchmark the size of the endorsement premium to other well-known determinants of vote-choice in local elections. Perhaps surprisingly, we show the endorsement effect can be as large as the impact of shared partisanship, and substantially larger than the boost from endorsements provided by other stakeholders. Finally, examining real-world endorsement decisions, we find that union support for incumbents hinges on self-interested pecuniary considerations and is unaffected by performance in improving student academic outcomes. The divergence between what endorsements mean and how voters interpret them have troubling normative democratic implications.

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Vladimir Kogan.

How do adult "culture wars" in education affect student learning in the classroom? I explore this question by combining information on nearly 500 school district political controversies with data on state test scores. Leveraging variation in the location and timing of these events as the basis for a difference-in-differences design, I show that student achievement declines in the wake of adult political battles. The effects are concentrated in math achievement -- the equivalent of approximately 10 days of lost learning -- and persist for at least four years. The declines are particularly pronounced for controversies surrounding racial issues and the teaching of evolution. These results suggest that well-intentioned education advocacy efforts focused on salient social justice issues may backfire, producing in unintended negative impacts on student achievement, and raise new questions about the adequacy of local democratic processes for the governance of public schools.

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Vladimir Kogan, Brandon Genetin, Joyce Chen, Alan Kalish.

Student surveys are widely used to evaluate university teaching and increasingly adopted at the K-12 level, although there remains considerable debate about what they measure. Much disagreement focuses on the well-documented correlation between student grades and their evaluations of instructors. Using individual-level data from 19,000 evaluations of 700 course sections at a flagship public university, we leverage both within-course and within-student variation to rule out popular explanations for this correlation. Specifically, we show that the relationship cannot be explained by instructional quality, workload, grading stringency, or student sorting into courses. Instead, student grade satisfaction -- regardless of the underlying cause of the grades -- appears to be an important driver of course evaluations. We also present results from a randomized intervention with potential to reduce the magnitude of the association by reminding students to focus on relevant teaching and learning considerations and by increasing the salience of the stakes attached to evaluations for instructor careers. However, these prove ineffective in muting the relationship between grades and student scores.

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