Can you help me remember the stages of the Hovland-Yale model?

Well first just to recap the four stages are: attention, comprehension, reactance and attitude change. Now traditionally for this sort of question I would suggest that a mnemonic would be a good strategy: All Children Reach Adulthood. However, for this example I just changed it so that whenever I referred to the model I called it the Hovland yACRA model and that way the stages were very easy to remember.