This study examines the effect of the timing of follow-ups, different incentives, length, and presentation of the questionnaire on the response rate and response quality in an online experimental setting. The results show that short questionnaires have a higher response rate, although long...

An algorithm to measure agreement between sequences as proposed by Dijkstra and Taris is discussed. It is concluded that the “optimal alignment†algorithm does not necessarily produce the optimal solution, that is, the minimal distance between two sequences.