教育程度与被召入伍88.ppt

Chapter 15 The Elaboration Model Chapter Outline Introduction The Origins of the Elaboration Model The Elaboration Paradigm Elaboration and Ex Post Facto Hypothesizing Elaboration model A logical model for understanding the relationship between two variables by controlling for the effects of a third. The Origins of the Elaboration Model Paul Lazarsfeld and Patricia Kendall used the logic of the elaboration model to present hypothetical tables regarding Samuel Stouffer’s work regarding education and acceptance in the army. The Elaboration Paradigm A relationship is observed to exist between two variables. A third variable is held constant in the sense that the cases are subdivided according to the attributes of that third variable. The Elaboration Paradigm The original two-variable relationship is recomputed within each of the subgroups. The comparison of the original relationship with the relationships found within each subgroup provides a fuller understanding of the original relationship itself. Test/Control variable A variable that is held constant in an attempt to clarify further the relationship between two other variables. 1 教育程度與被召入伍 2 教育程度與朋友已經被徵召 3 朋友已被召與公平認定 4. 3 way table Intervening Test Variable Antecedent Test Variable Question Which of the following is a variable that is held constant in an attempt to clarify the relationship between two other variables? a coding scheme a causal relationship a test variable none of these choices Answer: C A test variable is a variable that is held constant in an attempt to clarify the relationship between two other variables. Partial Relationship In the elaboration model, this the relationship between two variables when examined in a subset of cases defined by a third variable. Zero-order Relationship In the elaboration model, this is the original relationship between two variables, with no test variables controlled for. Replication A technical term used in connection with the elaboration model, referring to the e