Various scales have been developed to assess individuals’ propensity to adopt new products. Several of these scales are significant in this field. For example, in 1975, Clark Leavitt and John Walton introduced a 30-item scale (6 items serve as filters and 24 are dedicated to evaluation). In 1983, Linda Price and Nancy Ridgway proposed a variety search scale (Use Innovativeness Scale) comprising 44 items rated on 7-point Likert scales. This scale aims to reflect five factors: creativity/curiosity, risk preference, voluntary simplicity, creative reuse, and potential for multiple uses.
Another notable contribution is that of Ronald Goldsmith and Charles Hofacker in 1991 with the Domain-Specific-Innovativeness Scale (DSI), which assesses an individual’s propensity to learn about and then adopt an innovation. This scale consists of five items rated on a five-point scale. In 1994, Gilles Roehrich also proposed an 18-item scale, emphasizing that innovativeness is primarily manifested in two types of products: mass-market products and those of specific interest to the individual.
Finally, in 1995, Kenneth Manning, William Bearden, and Thomas Madden introduced a scale measuring two aspects of innovativeness through two subscales: judgment formation (CIJM scale, Consumer Independent Judgment-Making Scale) and novelty seeking (CNS scale, Consumer Novelty Scale). The former comprises six items and the latter eight items, all rated on seven-point scales.