The second way in which time is involved in diffusion is in the innovativeness of
an individual or other unit of adoption. Innovativeness is the degree to which an
individual or other unit of adoption is relatively earlier in adopting new ideas than other
members of a social system. There are five adopter categories, or classifications of the
members of a social system on the basis on their innovativeness:
(1) Innovators – 2.5%
(2) Early adopters – 13.5%
(3) Early majority – 34%
(4) Late majority – 34%
(5) Laggards – 16%