Block and Block Longitudinal Study

Study Overview


The Block and Block Longitudinal Study examined personality and cognitive development from childhood to early adulthood for a sample of 128 children. In particular, the study sought to investigate the concepts of ego-control and ego-resiliency. Ego control refers to the delaying of behavioral impulses; undercontrollers tend to act more spontaneously, while overcontrollers are more constrained. Ego resiliency refers to a person's ability to moderate their level of ego control to fit a particular situation. Children were assessed at ages 3, 4, 5, 7, 11, 14, 18, 23, and 32; data collection began in 1969 and concluded in 1999. A wide variety of data were collected, including school and demographic information; evaluations by teachers, parents, and observers; standardized psychological tests; and self-report questionnaires.

Study Author(s): 
Sampling Procedures: 

Participants were selected from two consecutive cohorts at two nursery schools in Berkeley, California. Although not selected to be representative of a national population, the sample was varied in terms of social class and parent educational level. Upper- and middle-class children are somewhat over-represented.

Contact and Data Access

1. I will use the dataset solely for statistical analysis and reporting of aggregated information and not for investigation of a specific individual or organization. 2. I will produce no links among the Distributors' datasets or among the Distributor's data and other datasets that could identify individuals or organizations. 3. I represent neither I, nor anyone I know, has any prior knowledge of the possible identification of any study participants in any dataset that I am being licensed to use. 4. I will not knowingly divulge any information that could be used to identify individual participants in the study, nor will I attempt to identify or contact any study participant and I agree to use any precautions necessary to prevent such identification. 5. I will not reproduce the dataset except as it is necessary for scholarly purposes. I will destroy the dataset upon completion of my scholarly work with it. 6. I will not share data from the dataset (in any form or by any means) with any third party, as I understand that all users of the data must obtain it directly from the distributor. 7. I will make appropriate acknowledgement of the contributor and distributor of the dataset in any manuscript or publication. 8. The distributor makes no warranties, express or implied, by operation of law or otherwise regarding or relating to the dataset.
Citation Requirements: 
Users of the data must include a bibliographic citation acknowledging the use of these data in any publication or presentation in which these data are used. Such citations should appear in footnotes or in the reference section of any such manuscript.
The original collector of the data, SSRI, and the relevant funding agencies, bear no responsibility for the use of the data or for interpretations and inferences based upon such users.
Distribution Date: 

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