COZBY, Paul C BATES, Scott C text New York : McGraw-Hill, 2012 This book expands and emphasizes coverage of validity in behavioral research. By highlighting the key concepts of internal, external, and construct validity throughout the text, we hope to support students' understanding of there fundamental ideas. Furthermore, validity now provides a theme that runs throughout the text-just as validity is a theme that runs throughout behavioral research. Indeks : hlm. 407-416 hlm. 395-405 DEWASA BEHAVIORAL RESEARCH URN:ISBN:978-007-108628-8