MAXIMIZING BOTH EXTERNAL AND INTERNAL VALIDITY IN LONGITUDINAL TRUE EXPERIMENTS WITH VOLUNTARY TREATMENTS:THE "COMBINED MODIFIED" DESIGN

Gelijkaardige items

• The use of modified ride-on cars to maximize mobility and improve socialization-a group design
  door: Huang, H.H
• THE ROLE OF THE SUPERVISOR: DIFFERENCES BETWEEN "INTERNAL" AND "EXTERNAL" SUPERVISORS
  door: ITZHAKY, H.
• LONGITUDINAL RESEARCH: METHODS FOR MAXIMIZING SUBJECT FOLLOW-UP
  door: WUTZKE, S.E
• INTERNAL AND EXTERNAL VALIDITY IN TWO STUDIES THAT COMPARED TREATMENT METHODS
  door: GLINER, J.A
• THE MODIFIED RIVERMEAD MOBILITY INDEX: VALIDITY AND RELIABILITY
  door: LENNON, S.