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Standard Units (standard + unit)
Selected AbstractsRelationship between product groups' price perceptions, shopper's basket size, and grocery store's overall store price imagePSYCHOLOGY & MARKETING, Issue 10 2003Kalpesh Kaushik Desai This research investigates how consumers form an overall store price image (OSPI) of grocery stores. Whereas prior research on this topic has explored the influence of the number of products offered at lower prices and of the magnitude of such price reduction, this study addresses the following two questions: How do the (lower) prices offered on different types of products influence OSPI? Does such influence vary across consumers, and, if so, how? A general framework of product-price saliency on consumers' OSPI is developed and tested. Specifically, based on two product-related factors,consumption span (length of time required to finish the consumption of a standard unit of the product) and unit price, grocery-store products are classified into four exhaustive and mutually exclusive product groups, and the relationship between OSPI and group-level price perceptions across the four product groups is examined. The framework also examines to what extent this relationship is moderated by consumers' shopping-basket size. Consistent with the proposed framework, this research finds strong empirical evidence of a systematic but differential relationship between OSPI and product group-level price perceptions and also a systematic interaction effect with consumers' basket size. The findings help to identify focal product categories across distinct consumer segments and thus hold important strategic implications for category management and target marketing that are likely to increase the overall effectiveness of retail promotional strategies. © 2003 Wiley Periodicals, Inc. [source] Estimating bird species richness: How should repeat surveys be organized in time?AUSTRAL ECOLOGY, Issue 6 2002Scott A. Field Abstract Estimates of species richness for a given area require that repeat surveys be taken, so that the statistical robustness of the estimate can be assessed. But how should these repeat surveys be organized in time? Here we present a case study of Australian woodland birds, surveyed using the ,active timed area search' method, which has become the standard unit for the Australian Bird Atlas, a continental-scale bird survey. To date, there has been no assessment of how estimates of species richness derived from this method are affected by the temporal organization of the repeat surveys. For instance, can conducting the repeat surveys in sequence on the same day effectively capture richness, or will additional species be obtained by repeating the surveys on different days within a season? If so, does the spacing of the repeat visits throughout the season have an effect? To answer these questions, we surveyed woodland birds in the Mount Lofty Ranges, South Australia, during late spring,summer 1999,2000, and compared the performance of two different temporal configurations of repeat visits to sites: (i) six repeat surveys performed on the same day; and (ii) three repeat surveys on different days. For both, we calculated the average number of species actually sighted and also estimated total species richness. The data supported our hypothesis that the same-day surveys would yield fewer species and underestimate total species richness. The different-day repeats captured significantly more species per unit of survey effort, and yielded a higher richness estimate. However, the timespan over which different-day surveys were conducted within a season did not have a significant influence on species richness estimates, evincing a qualitative advantage to surveying on different days, regardless of the spacing of repeat visits. These results may be of assistance to conservation managers when planning cost-efficient monitoring regimes. [source] Predictors of hangover during a week of heavy drinking on holidayADDICTION, Issue 3 2010Morten Hesse ABSTRACT Aims To investigate predictors of hangover during a week of heavy drinking in young adults. Design Observational prospective study. Methods A total of 112 young Danish tourists were interviewed on three occasions during their holiday. They completed the Acute Hangover Scale and answered questions about their alcohol consumption and rest duration. The incidence of hangover was analysed as the proportion of heavy drinkers (i.e. those reporting drinking more than 12 standard units of alcohol during the night before) scoring above the 90th percentile of light drinkers (i.e. those who had consumed fewer than seven standard units the night before). We estimated the course and predictors of hangover using random effects regression. Results The incidence of hangover was 68% after drinking more than 12 standard units in the whole sample. The severity of hangover increased significantly during a week of heavy drinking and there was a time × number of drinks interaction, indicating that the impact of alcohol consumed on hangover became more pronounced later in the week. Levels of drinking before the holiday did not predict hangover. Conclusions Hangovers after heavy drinking during holidays appear to be related both to amount drunk and time into the holiday. [source] Diverse alcohol drinking patterns in 20 African countriesADDICTION, Issue 7 2009Thomas Clausen ABSTRACT Aims This paper describes drinking patterns in 20 African countries, exploring the extent of abstention, heavy occasional drinking and daily light drinking and how these aspects of drinking are inter-related. Design and participants Data were collected as part of the World Health Survey in 2002,04 and comprise national representative data sets from 20 African countries. A cross-sectional survey of 77 165 adults aged 18 years and older were undertaken by face-to-face interviews in respondent households. Measures Drinking behaviour was assessed in terms of life-time abstention and the following measures over the 7 days immediately preceding interview: high consumption (15 or more drinks); heavy drinking occasions (five or more standard units at at least one session) and daily light drinking (one or two drinks daily). Findings In four countries (Comoros, Mali, Mauritania and Senegal), virtually all respondents were life-time abstainers. The prevalence of current drinkers (previous week) did not exceed one-third in any country. Among current drinkers the prevalence of heavy drinking varied between 7% and 77% and the prevalence of daily light drinkers varied between 0% and 21%. Overall drinking patterns varied significantly between and within the examined African countries. Conclusions African drinking patterns are diverse, and although life-time abstinence dominates in African countries, a single typical pattern of drinking for the African continent, such as the alleged ,all-or-none' pattern, was not observed. [source] Translating Effective Web-Based Self-Help for Problem Drinking Into the Real WorldALCOHOLISM, Issue 8 2009Heleen Riper Background:, Drinking Less (DL) is a 24/7 free-access anonymous interactive web-based self-help intervention without therapeutic guidance for adult problem drinkers in the community. In a randomized controlled trial (referred to here as DL-RCT), DL has been shown effective in reducing risky alcohol consumption. Objective:, To assess whether the findings of DL-RCT are generalizable to a naturalistic setting (DL-RW) in terms of ability to reach the target group and alcohol treatment response. Methods:, Pretest,posttest study with 6-month follow-up. An online survey was conducted of 378 of the 1,625 people who used DL-RW from May to November 2007. Primary outcome measures were (1) problem drinking, defined as alcohol consumption in the previous 4 weeks averaging >21 or >14 standard units (male/female) per week or ,6 or ,4 units (m/f) on 1 or more days per week; and (2) mean weekly alcohol consumption. DL-RW and DL-RCT data were compared and pooled. Intention-to-treat (ITT) analysis was performed to analyze and compare changes in drinking from baseline to follow-up. Results:, In the DL-RW group, 18.8% (n = 71) were drinking successfully within the limits of the Dutch guideline for low-risk drinking (p < 0.001) 6 months after baseline (ITT). The DL-RW group also decreased its mean weekly alcohol intake by 7.4 units, t(377) = 6.67, p < 0.001, d = 0.29. Drinking reduction in DL-RW was of a similar magnitude to that in the DL-RCT condition in terms of drinking within the guideline [,2(1) = 1.83, CI: 0.82,3.00, p = 0.18, RD = 0.05, OR = 1.55] and mean weekly consumption (a negligible difference of d = 0.03 in favor of DL-RW group). Conclusion:, The results from DL-RCT and DL-RW were similar, and they demonstrate that web-based self-help without therapeutic guidance is feasible, well accepted, and effective for curbing adult problem drinking in the community. [source] | ||||||||||