Einzelne Forschende stehen zunehmend im Fokus der öffentlichen Aufmerksamkeit. Bereits seit einigen Jahren, aber nochmal beschleunigt durch die momentane Situation, erschließen sich neue Wege der Publikation und der Kommunikation von wissenschaftlicher Expertise. Diese neuen Wege erfordern auch neue Indikatoren zur Vermessung und Bewertung wissenschaftlichen Outputs und dessen Relevanz. Sogenannte alternative …
This time, we apply multiple imputation to harmonize data for the same construct measured different instruments. We will treat data as swiss cheese and then unleash mice, sorry MICE, on it. The approach will pose some hurdles regarding the required data and the analysis complexity. However, if those hurdles are …
Equipercentile equating is an alternative version of observed score equating that can accommodate non-normal response distributions. It corrects for differences in mean and standard deviation but also higher distribution moments, such as skewness and kurtosis. This helps harmonize instruments, where, for example, respondents mostly choose high (or low) response options. …
The outbreak of COVID-19 has created new challenges for face-to-face research activities, including conducting in-person cognitive interviews. The first lockdown in Germany in mid-March 2020 coincided with the preparation phase of a pretest that we planned to conduct face-to-face in our pretest lab in Mannheim. Since we were no longer …
As an alternative to linear stretching, we look into the observed score equating approach in this post and the next. The easiest form of observed score equating is linear equating: a powerful approach that corrects for biases in the mean and standard deviation while harmonizing different instruments. Als Alternative zu …
Linear stretching is a frequently used approach to combine data from response scales with different numbers of response options. In linear stretching, the scales’ minimum and maximum scores are set as equal, respectively, and all values in between are spread with equal distances within this range. However, while temptingly easy …