Complex sentence: Attitude, motivation, and ability strongly increase the likelihood that a message will be ingrained in the minds' of listeners, although, as the social judgement theory suggests, they may not process the information in a fair, objective way.
Split into simpler sentences: Attitude, motivation, and ability strongly increase the likelihood that a message will be ingrained in the minds' of listeners. Although, as the social judgement theory suggests, they may not process the information in a fair, objective way.