As an adult you establish a unique identity, reach the proverbial midlife crisis, and eventually succumb to old age. In this lesson, learn about the physical, psychological, and emotional changes that take place along this journey. Psychology 103: Human Growth and Development / Psychology Courses.
CMV is a common viral infection, especially among young children. Congenital CMV occurs when the infection is passed across the placenta from a pregnant woman to her developing baby. Some babies with congenital CMV infection show signs of disability at birth, while others are born healthy.
CMV is defined as overlapping variability due to the way data were collected rather than from a real, substantive relationship. A form of CMV, Single Source Bias (SSB) arises when overlapping variability is due to data collected from a single source (Campbell & Fiske, 1959). People are complicated; collecting data from them is inaccurate and unreliable.