Response to comment on 'Typical physics Ph.D. admissions criteria limit access to underrepresented groups but fail to predict doctoral completion'
| Autor: | Rachel T. Silvestrini, Theodore Hodapp, Julie Posselt, Casey W. Miller, Benjamin M. Zwickl |
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| Rok vydání: | 2019 |
| Předmět: |
Variance inflation factor
Multidisciplinary 05 social sciences 050401 social sciences methods 050301 education Technical Comments Random effects model Technical Comment Generalized linear mixed model Test (assessment) Scientific Community Variable (computer science) 0504 sociology Multicollinearity Statistics Range (statistics) SciAdv t-comment Limit (mathematics) 0503 education |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| Popis: | Additional analysis confirms that GRE-Q and GRE-P scores have limited reliability in predicting Ph.D. completion in physics. We provide statistical measures and additional analyses showing that our original analyses were sound. We use a generalized linear mixed model to account for program-to-program differences with program as a random effect without stratifying with tier and found the GRE-P (Graduate Record Examination physics test) effect is not different from our previous findings, thereby alleviating concern of collider bias. Variance inflation factors for each variable were low, showing that multicollinearity was not a concern. We show that range restriction is not an issue for GRE-P or GRE-V (GRE verbal), and only a minor issue for GRE-Q (GRE quantitative). Last, we use statistical measures of model quality to show that our published models are better than or equivalent to several alternates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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