The median is the mid-point of a given data set; rather than the mean, which produces a single number that takes into account the extremes of the data set as well as the middle, the median tends to be more stable, finding the half-way point between extremes rather than directly incorporating them. For wage comparisons, especially over time, the median is useful and an excellent choice of statistical tool precisely

Combat and Substance Abuse Posttraumatic stress disorder (PTSD), as a consequence of combat experience, is believed to be a significant risk factor for substance abuse. This theory has been undermined to some extent by recent findings which suggest mental illness, apart from PTSD, may be a stronger predictor. Although combat-related PTSD may significantly contribute to the prevalence of substance abuse among veterans, the dominant substance abuse risks are the same for

Here, the dependent variable is identified as the proclivity toward suicide. The researchers identify four independent variables due for measurement. These are identified as psychological distress, hopelessness, drug abuse, and relationship discord. (Kaslow et al., p. 13) The study collected data using interviewing techniques that would occur within a 24 to 72 window of the subject's hospital admission. Findings would be measured in the categories of Psychological Risk Factor Variables

(p. 226) Findings and Discussion Paulessen-Hoogeboom et al. (2008) present us with a number of key findings that have such pervasive implications for parenting. All toddlers engage in behaviors such as biting, hitting, screaming, or otherwise acting out. Such behaviors arise as a result of negative emotions. Parents often find these behaviors hard to deal with -- along with other children and other caregivers. The response by others in the children's

In a study of 50 failed states and political structures, the authors found that in nearly every case (47 of the 50) there was a direct link between out of control population growth and the depletion of specific resources that allow both the country's government and economy the means to create a stable society (Levin, and Renelt, 1992, pp. 954). Overpopulation was but one of a set of variables

Abused children develop antisocial behavior that persists through three continuous generations. Such behavior grows out of angry, aggressive parenting and an overall negative home environment, perpetuated by sibling collusion, economic and biological factors. These children exhibit this in preschool by committing at least one antisocial behavior each day in class. As dysfunctional adolescents, their romantic lives and eventual marriages also fail. African-American children suffer from the affliction than Caucasian children.