POLARIZED PRIORITIES OR FLEXIBLE ALTERNATIVES? DIMENSIONALITY IN INGLEHART'S MATERIALISM--POSTMATERIALISM SCALE

Ronald Inglehart's Postmaterialism thesis has undoubtedly beenone of the most influential ideas in cross-national and cross-temporalresearch on political behavior over the past two decades. Thewide-ranging debate and criticism generated by the Inglehartthesis has focused both on theoretical issues concerning thenature of values and on methodological issues concerning themeasurement of Materialism and Postmaterialism, particularlythe method for ranking individual responses. Using a data setthat employed both the original ranking method for measuringvalues and an alternative rating method, we explore the dimensionalstructure of these values and discuss the implications of differencesbetween the two measurement strategies. The two-dimensionalsolution provided by the rating method is, we argue, a moretheoretically appropriate way of understanding Materialist andPostmaterialist values than the notion of a single conflictdimension, since it allows for a more flexible and realisticaccount of the choices made by most social actors—choiceswhich may represent both Materialism and Postmaterialism.     

Semi‐automating the manual literature search for systematic reviews increases efficiency

Background: To minimise retrieval bias, manual literature searches are a key part of the search process of any systematic review. Considering the need to have accurate information, valid results of the manual literature search are essential to ensure scientific standards; likewise efficient approaches that minimise the amount of personnel time required to conduct a manual literature search are of great interest. Objective: The objective of this project was to determine the validity and efficiency of a new manual search method that utilises the scopus ? database. Methods: We used the traditional manual search approach as the gold standard to determine the validity and efficiency of the proposed scopus method. Outcome measures included completeness of article detection and personnel time involved. Using both methods independently, we compared the results based on accuracy of the results, validity and time spent conducting the search, efficiency. Results: Regarding accuracy, the scopus method identified the same studies as the traditional approach indicating its validity. In terms of efficiency, using scopus led to a time saving of 62.5% compared with the traditional approach (3 h versus 8 h). Conclusions: The scopus method can significantly improve the efficiency of manual searches and thus of systematic reviews.