Happiness Index Measurement: Application of Kansei Engineering and Positive Psychology Toshio Tsuchiya 1 , Anitawati Mohd Lokman 2 , Shamsiah Abd Kadir 3 , Fauziah Noor- din 4 1 Shimonoseki City University, Japan, tsuchiya@shimonoseki-cu.ac.jp 2 Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, Malaysia 3 Centre for Media and Information Warfare Studies, Universiti Teknologi MARA, Malaysia 4 Faculty of Business and Management, Universiti Teknologi MARA, Malaysia 1 tsuchiya@shimonoseki-cu.ac.jp, 2 anita@tmsk.uitm.edu.my, 3 shamsiah.abdkadir8@gmail.com, fauziah716@salam.uitm.edu.my Abstract. This paper discusses how to measure happiness from subjective worker's emotion in one's work environment. It is one of the most important and fundamental problems for positive psychology to measure happiness. In posi- tive psychology study, many of scientific and experimental methods have been proposed as happiness testing or questionnaires. The methods are however de- pending on specific fields, test groups, and purposes of the measurement. The main issue of this paper is to illustrate the objective method by using factor analysis from subjective data of given basic questionnaires. The method is test- ing by actual data from a case study of workers' happiness. The robustness is confirmed from the testing data by multidimensional analysis. Keywords: happiness index, positive psychology, workers' emotion, factor analysis. 1 Introduction This study aims to establish a method for measuring workers' happiness. Positive Psychology [1] is the scientific study of the strengths that enable individuals and communities to thrive. The field is founded on the belief that people want to lead meaningful and fulfilling lives, to cultivate what is best within themselves, and to enhance their experiences of love, work, and play 1 . Happiness in the context of work can be measured by scientific study from peoples' emotional investigation. Some factors such as demographic background, health, economic background affects the feeling of happiness of a person [2-3]. This lead to subjective well-being, which shows how happy a person is, and or how good his / her quality of life, which also influenced by his / her own subjective perception of happiness and well-being [4-5]. This study focuses on the method of measurement of the workers' happiness. 1 Positive Psychology Center at the University of Pennsylvania web page, http://ppc.sas.upenn.edu. 4 c  Springer Nature Singapore Pte Ltd. 2018 A. M. Lokman et al. (Eds.): KEER 2018, AISC 739, pp. 855–862, 2018. https://doi.org/10.1007/978-981-10-8612-0_89