This article is partially based on the author’s thesis entitled
‘School leadership competencies for teacher professional
development: a Namibian case study’ towards the degree of
Philosophiae doctor in the Education Management, Law and
Policy, Faculty of Education at University of Pretoria on 15
March 2023 , with supervisor(s) Dr Andre du Plessis and Prof
R. N. Marishane. It is available here: https://repository.
up.ac.za/handle/2263/91352.
DATA AVAILABILITY :
The data that support the findings of this study are available
from the corresponding author, J.H.S.S.-O., upon reasonable
request.