Following the pre-conventional stage, the next important stage in human development, according to Kohlberg, is the conventional stage. It is generally reached when the transition is made from childhood to adolescence. Linn wrote, " with progress in moral stage, the adolescent ...

Several decades ago, Lawrence Kohlberg proposed that people progressed in their moral reasoning through a series of stages. These six steps brought a person from an egocentric mentality to one that is concerned with the well being of others. He further divided the six stages into three levels: pre...

Piaget's stage of preoperational thought occurs between the ages of two and seven. During this stage, children have begun to use language as a means of communicating. This language, however, tends to be egocentric, showing how the children assume that everything is how they see it. Children at ...

Intelligence and Psychological Testing Psychological tests are measures of behavior Percentile scores indicate the percentage of people who score at or below specific scores Validity refers to the ability of a test to measure what it was designed to measure Content validity refers to the degre...

There are two classical theories of cognitive development. The one that I will focus on is Piaget's theory of cognitive development. Jean Piaget, a Swiss, educated, mollusk biologist lived from 1896 to 1980. He hypothesized that learning is a physical, biological function of dealing with succes...