Administered translations of the Revised NEO Personality Inventory to adults in Germany, Italy, Portugal, Croatia, and South Korea. Found declines in neuroticism, extraversion and openness, and increases in agreeableness and conscientiousness age for both men and women. Results support hypothesis that age differences reflect universal maturational…

The purpose of this study was to examine self-reinforcement as an agent of behavior change with children who were deficient in desired attention behaviors. Twenty three first and second grade school children were taught through external reinforcement procedures to raise their level of attention on a simple discrimination task. Subjects in one…