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Psychomotor development of the Danzig quintuplets in their first year of life. A psychological evaluation.

A psychological follow-up, based on the Brunet-Lezine Scale, showed a constant progress in the development of the quintuplets, the pace being quite proper from the 5th month on. The children differed from each other: the best pace of psychomotor development was observed in Adam and Ewa, the worst in Piotr. In all children, control of body posture showed the highest rate of development, exceeding the presumed norms. Some delay was observed in speech. The results of the examinations made by the Psyche-Cattell Intelligence Scale agree with those obtained by the Brunet-Lezine Scale. Besides the differences in physical appearance, the children showed differences in personality features.