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Longitudinal data analysis is a very broad, general term for the analysis of data that are collected on the same units across time. Longitudinal data are sometimes referred to as repeated measures data or panel data (Hsiao, 2003; Frees, 2004). A variety of statistical models exist for analyzing longitudinal data.
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 3 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |