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PurposeThe purpose of this research was to explore the leadership style of graduate project management students vs other MBA students.Design/methodology/approachGraduate project management and MBA students attending a regional comprehensive university in USA returned surveys that assess their leadership style emphasis of concern for task or concern for people.FindingsProject management students rate themselves significantly higher on the concern for people leadership style and were found to have a balance between the concern for task and concern for people leadership style vs MBA students.Practical implicationsIndividuals exhibiting a concern for people leadership style and those with a balance between concern for task and concern for people leadership styles are good candidates for project management positions as well as training/education in project management.Originality/valueThe paper shows that the selection and training of project managers based on bahavioral tendencies can relate to project success.

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Purpose The purpose of this paper is to demonstrate that common method variance, specifically single-source bias, threatens the validity of a university-created student assessment of instructor instrument, suggesting that decisions made from these assessments are inherently flawed or skewed. Single-source bias leads to generalizations about assessments that might influence the ability of raters to separate multiple behaviors of an instructor. Design/methodology/approach Exploratory factor analysis, nested confirmatory factor analysis and within-and-between analysis are used to assess a university-developed, proprietary student assessment of instructor instrument to determine whether a hypothesized factor structure is identifiable. The instrument was developed over a three-year period by a university-mandated committee. Findings Findings suggest that common method variance, specifically single-source bias, resulted in the inability to identify hypothesized constructs statistically. Additional information is needed to identify valid instruments and an effective collection method for assessment. Practical implications Institutions are not guaranteed valid or useful instruments even if they invest significant time and resources to produce one. Without accurate instrumentation, there is insufficient information to assess constructs for teaching excellence. More valid measurement criteria can result from using multiple methods, altering collection times and educating students to distinguish multiple traits and behaviors of individual instructors more accurately. Originality/value This paper documents the three-year development of a university-wide student assessment of instructor instrument and carries development through to examining the psychometric properties and appropriateness of using this instrument to evaluate instructors.