To measure human haptic perception, some researchers have used a single self-report measure while others have simultaneously employed several different self-report measures. Using a think aloud method, Sulaiman and Blandford (2004) interviewed 21 artists in order to identify the visual and haptic elements involved in the drawing domain, providing them with nine pen-like tools and two types of paper with which to work. Based on the audio data recorded during the interviews, 21 sets of vocabulary used by the artists were extracted and categorized. Although tactual experiences are common in everyday life, people are either unwilling or unable to talk about them, finding it difficult to discuss the exact feelings they experience when touching objects (Sonneveld and Schifferstein, 2008). For this reason, it is difficult to gather information about participants’ feelings, attitudes, etc. through employment of self-report measures alone. To overcome this limitation, the researchers recruited professionals as participants. Nevertheless, it is difficult to gather and analyze a large amount of data using the retrospective think aloud method. In order to explore the potential requirements for products to provide a pleasant feeling of touch, Shi et al. (2008) conducted a questionnaire with 200 participants, 10 of whom were interviewed in depth to gain an understanding of the real meaning behind participants’ responses.