Maria Przetacznik-Gierowska

Maria Przetacznik-Gierowska (1920-1995) continued the research on children’s speech initiated by S. Szuman, studying the development of vocabulary in terms of adjectives and adverbs and children’s mastery of grammatical structures. A new series of speech diaries was collected under her direction. Long-time head of the Department of Developmental and Educational Psychology and Director of the Institute of Psychology. She was the author of some 150 scientific dissertations and textbooks on developmental and educational psychology.