Original Research

Adaptation and implementation of the Rothwell-Miller Interest Blank

Jacobus G. Maree, Jacques Pietersen
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 34, No 1 | a1298 | DOI: https://doi.org/10.4102/satnt.v34i1.1298 | © 2015 Jacobus G. Maree, Jacques Pietersen | This work is licensed under CC Attribution 4.0
Submitted: 04 March 2015 | Published: 29 May 2015

About the author(s)

Jacobus G. Maree, Department of Educational Psychology, University of Pretoria, South Africa
Jacques Pietersen, Unit for Statistical Consultation, Nelson Mandela Metropolitan University, South Africa

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The aim of this study was to adapt an existing but extremely dated interest questionnaire, the RothwellMiller Interest Blank (RMIB). In the first phase, four provinces were selected purposively: one urban and three rural or semirural. Secondly, a purposeful sample of 518 Grade 11 learners in eight schools was selected (mean age [x] Male = 17.52 years, Female = 17.39 years; standard deviation[s] Male = 0.97 years, female = 0.93), divided according to medium of instruction (Afrikaans/English) and area (urban/rural/semirural area). Statistical analyses included determining of reliability by calculating Cronbach’s α and the split-half reliability. The data was further analysed by means of statistical techniques including t-test, ANOVA and Tukey’s HSD. Results are discussed and the study concludes that although the adapted questionnaire could be a valuable instrument for use in South Africa, further research is required.


belangstelling, belangstellingsvraelys, beroepsvoorligting, kwantitatiewe benadering, toetsing, psigometriese toets


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