chapter 5 theoritcal framework Flashcards
(21 cards)
what are the 3 main steps in building a theoretical framework
- define variables/concepts
- develop the conceptual model
- explain relationship using theory
what is variable
any characteristic that can be measured or observed
types of variables
- independent variable
- dependent variable
- moderating variable
- mediating/intervening
what is dependent variable
outcome or result your trying to explain
what is an independent variable
the factor you caused or explains change in the dv
what is a moderating variable
a variable that affects the strength or direction of the relation between the iv and dv
what is a mediating variable
a variable that explains why the iv affects the dv
what are the 4 conditions for a valid iv-dv relationship
- covariation
- time sequence
- control for other factors
- logical explanation
what does covariation mean in iv-dv relationship
the iv and dv must change together in a predictable way
what does time sequence mean in iv-dv relationship
the iv must happen before dv
what does “control for other factors”
mean
you must rule out other possible causes that could affect the dv
why is logical explanation important
you need a solid theory to justify why the iv affects the dv
relationship among IV-DV
direct relationship
what is IV-IIV-DV relationship
explained relationship
what is IV-MV-DV relationship
relationship changes under certain conditions
what is a hypothesis
a formal statement predicting the relationship between variables
types of hypothesis
- directional
- non directional
- null
- alternative
what is directional hypothesis
predicts the direction of the relationship between variables
what is non directional hypothesis
states that a difference or relationship exists but does not specify direction
what is null hypothesis
a statement that says there is no significant relationship between variables
what is alternative hypothesis
a statement that says there is a significant relationship between variables
