​Measurement

-​It is the quantification of an object's or event's properties so that they may be compared to other objects or events.

​-Is a highly developed sub-field in quantitative research design in which a researcher must make assumptions regarding the nature of different types of phenomena.

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WHERE WILL I SEE THIS?

​Parts of the Measurement Process

Conceptualization

​* the practice of giving a conceptual or theoretical definition to an abstract construct in order to refine it.

​Operationalization

​*connecting a conceptual notion to a set of measuring techniques or processes

​Quantitative Conceptualization and Operationalization

​Theoretical

-At the most abstract level, the researcher is interested in the causal relationship between two constructs, or a proposition.

Operational

-At the level of operational definitions, the researcher is interested in testing a hypothesis to determine the degree of association between variables.

Empirical.

-The third level is the concrete empirical world. If the operational indicators of variables are logically linked to a construct, they will capture what happens in the empirical world and relate it to the conceptual level. The measurement process links together the three levels, moving deductively from the abstract to the concrete.

​RELIABILITY

Stability Reliability

-------------Test-Retest Method

Representative Reliability

-------------Subpopulation Analysis

Equivalence Reliability

----------Split-Half Method, Inter-Coder Reliability

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