Showing 1 - 2 of 2 Research Library Publications

Application of Sampling Variance of Item Response Theory Parameter Estimates in Detecting Outliers in Common Item Equating

Posted: | Chunyan Liu, Daniel Jurich

Applied Psychological Measurement: Volume 46, issue 6, page(s) 529-547

 

The current simulation study demonstrated that the sampling variance associated with the item response theory (IRT) item parameter estimates can help detect outliers in the common items under the 2-PL and 3-PL IRT models. The results showed the proposed sampling variance statistic (SV) outperformed the traditional displacement method with cutoff values of 0.3 and 0.5 along a variety of evaluation criteria.

Category:Assessment-Oriented Research, General Measurement

Location, Location, Location: When and How Low Price Locations Improve Consumer Price Perceptions

Posted: | Michael Barone, Keith S. Coulter, Katina Kulow, Xingbo (Bo) Li

Psychology & Marketing: Volume 39 - Issue 6 - Pages 1190-1203

 

Does seeing a price in a physically low (vs. high) location prompt consumers to believe that the featured product is less costly? This research further specifies when price location effects are likely to arise, increasing our understanding of pricing in general and this locational phenomenon in particular.

Category:Assessment-Oriented Research, Other