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An educational psychologist is analyzing three manuscripts to determine their publishing categories:

  • Manuscript X: Conducts a meta-analysis of 60 published papers to calculate the pooled effect size of mindfulness interventions on student anxiety.
  • Manuscript Y: Synthesizes 40 years of working memory literature to propose a brand-new, integrated conceptual model of cognitive load limits.
  • Manuscript Z: Reports the results of a newly conducted lab experiment testing 50 undergraduate students on a visual search task.

By analyzing the structural components and core objectives of these papers, the psychologist concludes that only Manuscript ____ (enter only the letter X, Y, or Z) represents a theoretical article.

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Updated 2026-06-07

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Research Methods in Psychology - 4th American Edition @ KPU

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