Descriptor
| Cognitive Development | 1 |
| Conservation (Concept) | 1 |
| Foreign Countries | 1 |
| Longitudinal Studies | 1 |
| Models | 1 |
| Young Children | 1 |
Source
Publication Type
| Reports - Research | 1 |
| Speeches/Meeting Papers | 1 |
Education Level
Audience
Location
| Iceland | 1 |
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
PDF pending restorationSchroeder, Eberhard; Edelstein, Wolfgang – 1985
In a longitudinal study conducted in Reykjavik, Iceland, 60 male and 61 female subjects were tested at 7, 8, and 9 years of age in order to investigate their comprehension of three concrete-operational concepts (conservation, class inclusion, and logical multiplication). This report focuses on a logical reconstruction of the developmental sequence…
Descriptors: Cognitive Development, Conservation (Concept), Foreign Countries, Longitudinal Studies
