Is this paragraph gramatically acceptable?
"An innovation is more likely to be adopted if consumers believe an innovation has considerable relative advantages, is highly compatible with existing values and systems, can be tried easily, outcomes are observable and the innovation is less complex than alternatives."
If not, how to improve it?

Question

Answer

Substitute "an innovation" (first line) with "it";

instead of: "considerable relative advantages" (second line), write: "relatively considerable advantages";
 
after "easily," (third line), rewrite the last 3 clauses (maybe they don't look like 3 clauses but they are) in this way: "is less complex than alternatives and outcomes are observable".

Answer

"An innovation is more likely to be adopted if consumers believe it has considerable relative advantages, like high compatiblility with existing values and systems, easy accesiblity, observable  outcomes and simplicity.

Não perca a oportunidade de aprender uma língua no conforto da sua casa. Navegue pela nossa seleção de professores de línguas experientes e inscreva-se na sua primeira aula agora mesmo!