PhD competency confidence varies by research style: evidence from 1,105 doctoral students

Updated Sep 07, 2026

Sook Mun Sim and Li-fang Zhang developed a questionnaire for PhD students’ perceived competencies and examined how responses related to research styles. The distinction matters: reporting confidence in a capability is not the same as demonstrating it.

The study analysed 1,105 PhD students from eight government-funded universities in Hong Kong. The researchers split responses into calibration and validation groups of 509 and 596. Their final inventory contained 23 items across seven scales, covering core competencies, academic and non-academic work, identity and professional habits.

Research styles statistically predicted perceived competencies, with different relationships across styles and scales. However, the design was cross-sectional and the authors explicitly reject causal inference. They also identify marginal validity in two competency scales and the need for cross-cultural replication. Read the full paper’s methods, results and limitations.

Questions for doctoral schools

Our practical suggestion is to map existing development questions against a clear framework before adding another survey. Ask which capabilities students are describing, how those differ from assessed performance, and what additional evidence would help supervisors interpret a low-confidence response.

If adapting an instrument, pilot it in the intended setting rather than assuming it transfers unchanged. Open comments could help staff explore students’ explanations, but this study did not test a commercial comment-analysis system or show that adding comments improves competency outcomes. Our PGR themes guide provides related prompts for that conversation.

Evidence and review

Review note, 7 September 2026: Checked against the full paper. We added the cross-sectional, self-report and measurement limitations and separated statistical prediction from causal claims. Publication date and URL are unchanged.

Reference

Sim, S. M. and Zhang, L. (2026). Do PhD students’ research styles predict their perceived competencies? Higher Education. DOI: 10.1007/s10734-026-01629-x.