Complex sentence: Bronfenbrenner wrote over 300 research papers and 14 books in his lifetime, and achieved the title of Jacob Gould Schurman Professor Emeritus of Human Development at Cornell University.
Split into simpler sentences: Bronfenbrenner wrote over 300 research papers and 14 books in his lifetime. He achieved the title of Jacob Gould Schurman Professor Emeritus of Human Development at Cornell University.