Communication Accomodation theory:

As this theory relates to the accomodation towards the speaker, this is usually applied when speaking to another person. This is especially true if said person cannot understand one's speech if being talked normally. The same can also be said if it is considered rude to the other party if  normal speech is used.

An example of the former is children. In general, children does not have an extensive vocabulary as adults do, such as his or her parents. They are also less knowledgable viewing the world in relatively simple ways and curious about matters in life. Hence, due to said curiosity, they are less likely to be embarrased than adults about certain matters such as drugs, sex and death. Education helps them understand these topics. However, it begins with the parents. It is their duty to provide not just information to their children, but it also must be done comfortably. They must also be aware of the child's knowledge of said topic beforehand. Overall, it helps them to understand and be aware of these concepts. (1)

As for the latter, elderly people would be considered. As these people have given the current generations their well-being, they should be treated with respect. In addition, if they have suffered any inconveniences, it would be best to show concern or comfort them in any given situation. If an elderly person causes what may be seen as a hardship, such as no longer driving, it would be best to seek help from friends, family or even appointments with a professional third-party(2) (image at right from www.helpguide.org)

Another example of the latter would be job interviews. Appearance is a vital factor for the interview. Another vital, but more important factor is the way the person communicates. Assuming they are equal in terms of appearance, a person who stutters a lot and sounds nervous is less likely to pass the interview as the employer does not feel comfortable with the interview(underaccomodation). On the other hand, one who speaks in a polite, confident manner is likely to get the job due to the employer feeling confident to give the job to the person.(3) (image at right from http://graduate.monster.co.uk)

References:

1.American Academy of Child & Adolescent Psychiatry (May 2005), Talking To Your Kids About Sex,62. Accessed 13/4/2012 from the website http://www.aacap.org/cs/root/facts_for_families/talking_to_your_kids_about_sex

2.Saisan, J.,White, W., and Robinson, L.(February 2012). Senior Driving: Safety Tips, Warning Signs, and Knowing When to Stop. Accessed 13/4/2012 from the website http://www.helpguide.org/elder/senior_citizen_driving.htm

3. Diersta, D. (2008). Six Sloppy Speech Habits. Accessed 13/3/2012 from the website http://graduate.monster.co.uk/6520_en_p1.asp