“…Consistent with the notion that EP's intense positive feelings are focused on the domains of passion for inventing, founding, and developing (Cardon et al, 2009a), we used a domain-sampling procedure (Nunnally, 1978) to develop theory-consistent items reflecting activities relevant for each domain. In practice, this focus on entrepreneurship activities provides respondents with a referent that augments our items' criterion validity (Arthur et al, 2007). For inventing, we developed items around activities such as 'figuring out new ways to solve unmet market needs' and 'searching for new ideas for products and services.'…”