Abstract: Based on the former report, two experiments were designed to further test the change/segmentahon model. In experiment 3, target interval, number of segments of Arabic numeral series filling in the interval and duration of segments were under control. In addition, the number of items within the segment was manipulated, Theresults showed that the number of segments of numeral series influenced time estimation but the number of items within the segment did not In experiment 4, the same factors mentioned above in experiment 3 were under control but instead the duration of segment was manipulated. The results showed that time estimation depended on what measuring scale had been used by the subject. These four experiments suggested that change/segmentation model is highly efficient in prediction but deficiencies still exist. In order to make a better account for the factors influencing time estimation from the cognitive perspective, the authors here had fulfilled a further demonstration on the proposed phase-synthesis model. And it is believed that the phase-synthesis model is a theoretical model that can better explain various factors influencing human being's time estimation.

Key words: change/segmentation model, storage size model, processing-time model, phase-synthesis model