The sleeper effect:

Question $1$ options:

$1)$

is a communication phenomenon.

$2)$

is typically more prevalent for low$-$involvement purchases.

$3)$

changes consumer attitudes such that non$-$credible sources produce attitude change similar to credible sources over time.

$4)$

is a communication phenomenon, is typically more prevalent for low$-$involvement purchases and changes consumer attitudes such that non$-$credible sources produce attitude change similar to credible sources over time.