Psychometric Evaluation of the Whole Brain Model - Adaptation of the HBDI for Business Students
Description
The objective of the present study was to know the psychometric properties of the Ned Herrmann test, HBDI (Herrmann Brain Dominance Instrument, 1989), in the Spanish version, which has been widely used in the field of education and organizational management. The HBDI is based on the Whole Brain model, which states that people have four thinking styles, related to the cerebral hemispheres and the limbic system. Method: Two exploratory and confirmatory factor analyzes were carried out on responses from 578 students from a business-oriented university. Results: In analysis 1, it was revealed that, of the 40 items of the Herrmann test in the Spanish version, they were reduced to only 11 items. In analysis 2, the results offer a new model, where the four dominance subscales have 2 indicators, reducing the questionnaire to only 8 items. Both analyzes showed the construct validity of the instrument Conclusion: The results show that this instrument in the Spanish version is reliable and valid. It offers the academic community a consistent tool to evaluate the thinking styles of business-oriented young people, in addition to being friendly, short and easy to administer.
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Method: A non-probabilistic intentional sample was used, consisting of 578 students from a business-oriented university in Lima, Peru. Of the total, 313 were women (54.15%) and 265 were men (45.85%). Additionally, demographic characteristics such as type of education, professional career, cycle completed, and age ranges were taken into consideration. It was observed that the majority of participants come from private schools (69.38%) and are between 19 and 21 years old (40.66%). Instrument: The Brain Dominance variable was measured using the HBDI (Herrmann Brain Dominance Instrument, 1982). This instrument seeks to measure the four Dominance quadrants (A, B, C, and D), allowing the development of a thinking profile, based on the quadrants with the highest score. This research used the version by Jiménez (2006), which is based on the HBDI and is composed of 40 items, divided into four sections of 10 items each, corresponding to the four quadrants of brain dominance. The instrument presents a Likert-type scale from 1 to 6 (where 1 = Total disagreement and 6 = Total agreement). This version has been widely used in the Latin American context. Software used: The statistical analysis was performed using the programs MS Excel (2016), SPSS (version 27), JASP (version 0.19.2.0), Jamovi (version 2.3.28) and RStudio (R 4.2.2).