Improving the Physical Fitness of Youth Nr.95 1964

Four Abitity -Factor Hypotheses at Three Preliterate Leves in Normal and Retarded Children Nr.96 1964

Correlations of Maternal and Child Behaviors with the Development mental Abilities: Data from the Berkeley Growth Study Nr.97 1964

Mathematical Leraning Nr.99 1965

European Research in Cognitive Development Nr.100 1965

Mental Abilities of Children from Different Social-Class and Cultural Groups Nr.102 1965

Self Future, and Time:A development Study of the Concepts of Psychotic, Brain-damaged and Normal Children Nr.103 1966

The Relation of test Anxiety and Defensiveness to test and school performance over the Elementary School Years: Nr.104 1966

Adult States of Children with Contrasting Early Life Experiences Nr.105 1966

Factors Associated with Impairment of the early Development of prematures Nr.106 1966

The Development of Conservation and Differentiation of number Nr.108 1966

Some factors Influencing the Efficacy of Punishment Training for Inducing Response Inhibition Nr.109 1967