TY - JOUR T1 - The Importance of Indirect Effects in Media Effects Research: Testing for Mediation in Structural Equation Modeling AU - Holbert, R. Lance AU - Stephenson, Michael T. PY - 2003 DO - 10.1207/s15506878jobem4704_5 SP - 556 EP - 572 JO - Journal of Broadcasting and Electronic Media VL - 47 IS - 4 ER -