Publicatiedrang en citatiestress: De invloed van prestatie-indicatoren op wetenschapsbeoefening

• The journal impact factor (JIF) and the Hirsch index, are two widely used parameters for evaluating scientific achievement. • The JIF is a parameter which shows the citation score of a journal over the previous two years. • The Hirsch index is a simple index to measure the citation performance of individual scientists. • These achievement indicators can be used to evaluate research and are thus an indicator for scientific output. Nevertheless, they should not be used as a measurement of scientific quality. • Scientific quality not only depends on citation scores, but also on originality, societal and scientific impact, robust methodology and validity and should therefore be evaluated on these parameters. • Little is known about the influence that these factors have on science in general and on scientists but there is some evidence suggesting detrimental effects on scientific practice and quality.