John A. Johnson

TL;DR: The International Personality Item Pool (IPIP) as mentioned in this paper has been used as a prototype for public-domain personality measures, focusing on the International personality item pool, which has been widely used for personality measurement.

TL;DR: The nature of personality psychology can be traced back to the early stages of early personality development as mentioned in this paper, where the Big Five model of personality was used to identify the most salient features of personality.

TL;DR: In this article, the relative incidence of protocols invalidated by linguistic incompetence, inattentiveness, and intentional misrepresentation in Web-based versus paper-and-pencil personality measures was estimated.

TL;DR: This article developed a 120-item version of the IPIPIPIP-NEO from an Internet sample (N = 21,588) and subsequent testing of its psychometric properties in Goldberg's (2008) Eugene-Springfield community sample and two additional large Internet samples (Ns =307,313 and 619,150) and a local sample (n = 160).

Abstract: A short five-factor personality inventory developed from the International Personality Item Pool (IPIP) was imple- mented as an online questionnaire and completed by 2,448 participants. Following factor analyses, a revised version was created with acceptable reliability and factor univocal scales. As preliminary evidence of construct validity, support was found for 25 hypothesized links with self-reports of relevant behaviors and demographic variables. In a replication using a different recruiting strategy to test for differences due to motivational factors, similar results were obtained. This set of scales appears to provide acceptable measures of the Five-Factor Model for use in internet-mediated research.