Learn how the Human Development Index (HDI) assesses global human development using income and education to rank countries ...

Kohlberg's theory of moral development outlines six stages across three levels, showing how people progress in moral reasoning from obeying rules to following universal ethical principles. Parents and ...

High levels of the stress hormone cortisol during the third trimester of pregnancy may improve speech and language skills in the first 3 years of a child's life, according to research presented at the ...

Between 1955 and 1970, the United States passed five laws to monitor and regulate the country’s air pollution. Each act built upon the last and, in 1970, Congress passed the Clean Air Act, which ...

Infants whose mothers regularly use language to describe what their child is thinking or feeling, have higher levels of the hormone oxytocin, finds a new study. Infants whose mothers regularly use ...

They have facilitated a fresh approach to communicating these teaching methods in a manner potentially more conducive to operational appropriation of unknown languages. By thus identifying language ...