kinggillian7951 kinggillian7951 18-12-2019 Social Studies contestada The integrative methodology in the early research of __________ formed the basis of today's developmental approach. Question 1 options: a) Keith J. Bell and Paul M. Klenowski. b) Eleanor Glueck and Sheldon Glueck. c) Rolf Loeber and Marc LeBlanc. d) Marvin Wolfgang and Terri Moffitt.