The "ideal" number of participants has been broadly debated, since that depends on a broad range of characteristics, such as the subject matter considered, the available resources, etc. However, Okoli et al recommend between 10 and 18, a number that seems reasonable.
Motivo de discusión ha sido el número "ideal" de participantes, pues este depende de variadas características como el tema de estudio, los recursos disponibles, etc. Sin embargo, Okoli et al recomiendan que sean entre 10 y 18, lo que parece razonable.