Transcription of Measurement
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Measurement
1 Measurement -1 MeasurementY520 Strategies for Educational InquiryRobert S MichaelMeasurement-2 How are variables measured? First, variables are defined by conceptual definitions(constructs) that explain the concept the variable isattempting to capture. Second, variables are defined by operationaldefinitions; that is, definitions of how variables will : Study effort (a) The variable study effort may be definedconceptually as the amount of effort required to mastera body of material, including reading, looking updefinitions, note-taking, drill, self-quizzing, and soforth. Each of these components must be operationalized inorder to be : Study effort (b) The variable study effort may be said to consist ofreading, looking up definitions, note-taking, drill, andself-quizzing. Reading (operational definition): How many hoursper day do you read course related material?
4 Measurement-7 What is Measurement? Measurement is the assignment of numerals to objects or events according to rules. • Numerals are labels that have no inherent meaning, for example zip codes, or automobile license plates. • Numbers are numerals that have quantitative meaning and can be analyzed, for example, age.
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