A SAMPLE OF 15-YEAR-OLDS WAS LOCATED AND TESTED AS AN ESSENTIAL PART OF PROJECT TALENT, A NATIONAL INVENTORY OF APTITUDES AND ABILITIES OF HIGH SCHOOL YOUTH. A PROBABILITY SAMPLE OF ALL 15-YEAR-OLDS IN THE UNITED STATES WAS ESTABLISHED, CONSISTING OF 4 1/2 PERCENT OF ALL SUBJECTS IN GRADES 9 THROUGH 12 AND LESS THAN ONE-HALF OF ONE PERCENT OF ALL…

TWO DIFFERENT USES OF VISUAL REPRESENTATIONS FOR SCIENCE INSTRUCTION WERE INVESTIGATED. THE FIRST STUDY EXAMINED THE HYPOTHESIS THAT USE OF PICTORIAL INSTRUCTION WOULD PRODUCE HIGHER CORRELATION BETWEEN RESULTS OF VISUAL APTITUDE TESTS AND LEARNING TESTS, AND THAT VERBAL INSTRUCTION WOULD PRODUCE HIGHER CORRELATION BETWEEN RESULTS OF VERBAL…

AN INTENSIVE STUDY OF THE AMERICAN HIGH SCHOOL WAS MADE TO SURVEY AVAILABLE TALENT, IDENTIFY INTERESTS, APTITUDES, AND BACKGROUND FACTORS, DETERMINE EFFECTS OF LACK OF INTEREST AND MOTIVATION, IDENTIFY FACTORS AFFECTING VOCATIONAL CHOICE, IDENTIFY PREDICTORS OF CREATIVITY AND PRODUCTIVITY, DETERMINE THE EFFECTIVENESS OF VARIOUS TYPES OF…

THE PROBLEM OF THIS RESEARCH WAS TO STUDY THE EXTENT TO WHICH STUDENTS ARE ABLE TO GENERALIZE WHAT THEY LEARN IN ONE LESSON SO THAT THEY ACTUALLY GAIN COMMAND OF ABILITIES NOT SPECIFICALLY TAUGHT UNTIL SOME LATER LESSON. THE AUTHOR EXAMINED CONDITIONS UNDER WHICH A MASTERY SCORE ON A PRETEST IN ARITHMETIC COULD BE CONSIDERED A TRANSFER INSTANCE.…