Maura and Trish are eighth graders who have been caught smoking. Maura's parents yell at her and refuse to let her explain things. They ground her for a month and take away her television and Internet privileges for two months. Trish's parents talk to her about their disappointment and concern; additionally, they make her spend every afternoon for a week at the library, researching the dangers of smoking and discussing her findings with them each night at dinner. Most likely, Maura's parents are and Trish's are .

authoritarian; authoritative                  

Explanation:

In psychology, there are mainly four distinct types of parenting style including authoritarian, uninvolved, permissive, and authoritative.

Authoritarian parenting style: A parenting style in which parents are distinguished as having low responsiveness and high demands. Generally, they pose very high expectations from their child whereas providing a little nurturance and feedback. Mistakes by a child are being harshly punished.

Authoritative parenting style: A parenting style in which parents are high on demands as well as high on responsiveness. Generally, they respond to their child's emotional needs along with keeping high standards. Enforce boundaries and set limits as well.

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.