Abstract
This study examined the relationship between cognitive development, as assessed by Piagetian tasks, and temporal extension as assessed by the Lines Test. It was hypothesized that concrete operational subjects, relative to formal operational subjects, would be more present oriented and have a longer life space extension. Furthermore, it was hypothesized that formal operational subjects, relative to concrete operational subjects, would be more future-oriented. Two Piagetian tasks and a Lines Test were administered to 65 senior high school students. Significant differences existed between the 23 concrete, 22 transitional, and 20 formal subjects on the measures of present and future temporal extension, but none on the life-space measure.
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