Chapter 2 Theories Flashcards
proposition
universal statement (causal relations between two or more concepts)
theory scheme
type of theory tool in which propositions, conditions, hypotheses and observations are written out as coherent set of verbal statements
condition
assumption about the specific setting which relates proposition to observations and hypotheses
syllogism
observation can be logically deduced from the proposition and the condition
hypothesis
testable prediction, derived from theory( deduce hypothesis from the same proposition and then study if its in line with observations- oppositie of phenomena- starts with proposition and then arrives a new Hypothesis (prediction) of what will happen under specific conditons)
modus tollens
if it is hypothesized that A lead to B, and it is observed that B is not true,then A cannot be true
theory
coherent set of propositions and assumptions about conditions which can explain certain phenomena and which generate hypotheses (predictions) on other ( yet unobserved and hypothetical) phenomena
What are useful sociological theories (2)
Truth (emperical succes) and Information (information content, theoretical precision/scope)
deeper explenation
type of explenation in which one proposition is explained by another, more genereal proposition
scope condition
set of conditions to which a certain theory is applicable
concepts
hypothetical abstraction that contains certain categories (theoretical variable)
abstractions
refer to a number of specific instances (food=all sort things we can eat)
hypothetical
mental constructs (ideas about reality)
categories
ex; food concept distinguishes from non-food
typology
a way of classifying reality, often done by combining concepts (ex= liberal, conservative, soc-dem, not theory!)
causality
idea that ind. var (x) has effect on dep var (Y)
independent variable
variable which has an effect on another variable
dependent variable
variable which is affected by another variable
criterion causality (3)
1) association 2) time order 3) non-spuriousness
theory tool
tool which helps systematically present a theory ( theory scheme, conceptual model and formal model)
conceptual model (path model/causal figure)
type of theory tool in which the causal relationships between concepts are visualized (theory scheme cannot handle many relationships at the same time)
direct causal relationship
a relationship between two variables x and y such that changes in x have a direct effect on changes in y (easily handled with theory scheme)
mediator
a variable Z that mediates the relationship between variables X and Y, such that changes in x impact changes in Z, which then results in changes in Y
complete mediation
the impact of x on y is completely accounted for by a third variable z, such that ther is no way that x affects Y than via z