Attempts to provide a broad variety of experiences, information, perspectives
Chosen to explore extremes to compare and establish the norm
Chosen to provide a representative picture
Chosen for extreme differences
Includes disconfirming cases that challenge emerging interpretation/theory
Cases have similar experience and represent the average
Reduces variation, simplifies themes represented
Chosen because it's thought to be like the majority
Provides a fuller range of diverse phenomena than would have otherwise been revealed
