Innovation for Sustainability: Convergent Mixed Method Strategies for Instrument Development in Impulsive Buying, Chan Pee Ven, Wong Chee Hoo, Tan Seng Teck, Arasu Raman, Anuj Kumar
Chan Pee Ven
Senior Lecturer, School of Foundation Studies, Xiamen University( Malaysia)
Research scholar, Faculty of Business and Communications
INTI International University
Malaysia
ORCID：0000-0001-9803-699X
Wong Chee Hoo
Professor, Faculty of Business and Communications, INTI International University, Malaysia
Department of Economic Sciences, Wekerle Business School, Budapest, Hungary
Faculty of Management, Shinawatra University, Pathum Thani, Thailand
International Institute of Management and Business, Belarus
ORCID：0000-0003-0691-4463
Tan Seng Teck
Professor, Faculty of Business and Communications
INTI International University
Malaysia
ORCID：0000-0003-4250-1017
Arasu Raman
Director, International Relations Collaboration Centre
INTI International University
Malaysia
ORCID：0000-0002-8281-3210
Anuj Kumar
Head of Research, Department of Research, Rushford Business School
Switzerland
ORCID：0000-0002-1205-2794
Type of paper: Research
Purpose: This study investigates the influence of perceived quality, brand awareness, and influencers' effect on the impulsive buying behaviour and its consequences for financial health.
Design/Methodology/ Approach: This study uses a convergent mixed-methods design (QUANT+qual). Quantitative data were collected from 40 Millennials via a structured questionnaire, while qualitative data were taken from two semi-structured interviews at a pilot stage. Instrument validity and reliability were assessed using face validity, sampling validity, convergent and discriminant validity, and expert review for qualitative methods.
Findings: Sampling validity, convergent, and discriminant validity were met, although AVE values for Perceived Quality and Brand Awareness fell below the 0.5 benchmark. Items loading above 0.7 were re-selected to address the issue. Qualitative results revealed contrasting brand preferences, providing depth to the quantitative analysis.
Originality/ Value: This study introduces a validated mixed-methods framework for diverse products and services, including online purchases, food, and fashion.
Research Limitations: Small sample size and construct validity issues limit generalisability.
Practical Implications: The study recommends standardised scales and urban sampling for future research to enhance robustness and applicability.
Keywords: consumer behaviour, human and health, impulsive buying, impulse purchase, initial findings, instrument development, online purchases, mixed method, financial well-being, research strategies.
Citation: Chan, P. V., Wong, C. H., Tan, S. T., Arasu, R., and Anuj, K. (2026). Innovation for Sustainability: Convergent Mixed Method Strategies for Instrument Development in Impulsive Buying . World Journal of Entrepreneurship, Management and Sustainable Development, Vol. 22, Nos 1-2, pp. xx-xx.