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Further concerns regarding "Decoding the elite soccer player's psychological profile": evidence from the authors' deleted data file

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  • Jakobsson, Niklas
  • Moore, Kristjan
  • Barbarioli, Bruno
  • Brodeur, Abel

Abstract

(2025a). The authors' response argues that the principal concerns are concentrated in the controls' first testing session. We examine an earlier dataset recovered from the public history of their repository. It contains 28 columns absent from the current BrazilianSample.xlsx. All twelve player D-KEFS columns were already public in a separate file, including the three columns labelled "Overall" in the recovered file. The recovered file adds control-group D-KEFS observations that closely reproduce the response's Table 1 and permits linkage across participant-level measures. Within individual teams, measures from different instruments and match statistics show near-perfect rank associations; team 5 contains 24 variable pairs with absolute Spearman correlations of at least 0.90. The Brazilian Design Fluency and Trail Making composites correspond less closely to their scaled subtest sums than in the Swedish comparison sample, with the player Trail Making correlation approximately zero. There are also 14 instances of successful events exceeding their corresponding totals, which is inconsistent if both refer to the same events and exposure. The article and response describe different testing sequences and intervals. These findings extend earlier concerns and require access to the exact analysis dataset, scoring and processing code, and documentation linking observations to source records.

Suggested Citation

  • Jakobsson, Niklas & Moore, Kristjan & Barbarioli, Bruno & Brodeur, Abel, 2026. "Further concerns regarding "Decoding the elite soccer player's psychological profile": evidence from the authors' deleted data file," I4R Discussion Paper Series 335, The Institute for Replication (I4R).
  • Handle: RePEc:zbw:i4rdps:335
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