This paper makes a contribution to knowledge by proposing a project management (PM) investigative framework with seven constructs and 60 sub-scales. The research consisted of an eightstep process. First, a project management assessment (PMA) tool was developed through an extensive literature review. Second, the PMA tool was evaluated through an expert panel. Third, the PMA tool was used to evaluate 330 projects, producing 330 PMA results. Fourth, an investigative framework linking the different PMA constructs was developed and tested. Structural equation modelling (SEM) was used to find links in the investigative framework for each of the PMA constructs, and 19 hypotheses were tested, all of which were accepted. The results provide interesting lessons for researchers and for project management practitioners. Finally, a discussion of the results, the study's limitations, and suggestions for further research are presented.. OPSOMMING Hierdie artikel lewer ʼn bydrae tot die literatuur deur ʼn projekbestuur ondersoekende raamwerk voor te stel met sewe konstrukte en 60 sub-skale. Die navorsing bestaan uit ʼn proses met agt stappe. Eerstens is ʼn projekbestuur assesseringsgereedskapstuk (PMA) ontwikkel deur ʼn uitgebreide literatuurstudie. Tweedens is die gereedskapstuk evalueer deur ʼn paneel van kundiges. Derdens is die gereedskapstuk gebruik om 330 projekte te evalueer. Vierdens is ʼn ondersoekende raamwerk wat die verskillende PMA konstrukte koppel ontwikkel en getoets. Strukturele vergelyking modellering is gebruik om skakelinge in die ondersoekende raamwerk vir elkeen van die PMA konstrukte op te spoor en 19 hipotese is getoets, waarvan almal aanvaar is. Die resultate verskaf interessante lesse vir navorsers en projekbestuurders. Laastens word ʼn bespreking van die resultate, die beperkinge en voorstelle vir verdere navorsing voorgehou.