Developing self-report Likert scales is an essential part of modern psychology. However, it is hard for psychologists to remain apprised of best practices as methodological developments accumulate. To address this, this current paper offers a selective review of advances in Likert scale development that have occurred over the past 25 years. We reviewed six major measurement journals between the years 1995–2019 and identified key advances, ultimately including 40 papers and offering written summaries of each. We supplemented this review with an (...) in-depth discussion of five particular advances: conceptions of construct validity, creating better construct definitions, readability tests for generating items, alternative measures of precision [e.g., coefficient omega and item response theory information], and ant colony optimization for creating short forms. The Supplementary Material provides further technical details on these advances and offers guidance on software implementation. This paper is intended to be a resource for psychological researchers to be informed about more recent psychometric progress in Likert scale creation. (shrink)

This survey on biotechnology and bioethics was carried out onnational random samples of the public and scientists in November2000-January 2000 throughout Japan, and attendees at theNovartis Life Science Forum held on 29 September, 1999 inTokyo. The sample size was 297, 370, and 74 respectively. Whilethere is better awareness of GMOs in 2000 compared to 1991; thetrend shows an increase in the perceived risks of GMOs followedby growing resistance in Japan. While a majority of personsbelieved genetic engineering would make life better (...) over the nexttwenty years , the proportion of respondents who thoughtgenetic engineering would make life worse over the next twentyyears doubled from 1997 to 2000 .Respondents were asked whether they had heard aboutapplications in several areas and the order of familiarity was: pest-resistant crops, human genes in bacteria, mouseto develop cancer, food and drinks, pigs with human hearts andpre-implantation diagnosis. A divide of opinion can be seen whenthe results on benefit, risk and moral acceptability of applicationsof biotechnology by the public are compared to the forum andscientist samples.A significant change in the acceptance of the public occurred in2000 where only 22% agreed on the moral acceptability of GMfood compared to 41% in 1997. In 2000 fewer people said they arewilling to buy genetically modified fruits that taste bettercompared to 1997 . The results show less public support foruse of gene therapy than 1993 and twice as many scientistsrejected gene therapy than they did in 1991.When asked whom is best placed to regulate modernbiotechnology, the respondents were overwhelmingly in favor ofinternational regulatory bodies, such as the United Nations andthe World Health Organization , rather than national bodies.The comparison between scientists and public is interesting,however the more enthusastic sample were participants from theNovartis Life Science Forum with its mixed occupations. (shrink)

The inconsistent findings of past board diversity research demand a test of competing linear and curvilinear diversity–performance predictions. This research focuses on board age and gender diversity, and presents a positive linear prediction based on resource dependence theory, a negative linear prediction based on social identity theory, and an inverted U-shaped curvilinear prediction based on the integration of resource dependence theory with social identity theory. The predictions were tested using archival data on 288 large organizations listed on the Australian Securities (...) Exchange, with a 1-year time lag between diversity (age and gender) and performance (employee productivity and return on assets). The results indicate a positive linear relationship between gender diversity and employee productivity, a negative linear relationship between age diversity and return on assets, and an inverted U-shaped curvilinear relationship between age diversity and return on assets. The findings provide additional evidence on the business case for board gender diversity and refine the business case for board age diversity. (shrink)

The present theory leads to a set of subjective weights such that the utility of an uncertain alternative (gamble) is partitioned into three terms involving those weights—a conventional subjectively weighted utility function over pure consequences, a subjectively weighted value function over events, and a subjectively weighted function of the subjective weights. Under several assumptions, this becomes one of several standard utility representations, plus a weighted value function over events, plus an entropy term of the weights. In the finitely additive case, (...) the latter is the Shannon entropy; in all other cases it is entropy of degree not 1. The primary mathematical tool is the theory of inset entropy. (shrink)