distinguish between instrument and instrumentation in quantitative research strategy
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In quantitative research, an instrument refers to the actual tool used to collect data, such as questionnaires, tests, surveys, or checklists, while instrumentation refers to the broader process of developing, validating, and applying those tools, including decisions on design, adaptation, reliability, and validity; in short, the instrument is the data-gathering device, whereas instrumentation is the systematic procedure surrounding its use.
Instrument in a quantitative research refers to the actual tool used for data collection.It is the device, scale, test, questionnaire, survey, or checklist that researchers administer to participants to gather measurable data.A structured questionnaire with Likert-scale items on maternal health awareness is an instrument.
Basically instrument is the tool used to collect data.
Instrumentation is the overall process of developing, testing, and applying instruments.It involves selecting the right instrument, validating it, ensuring reliability, piloting, and standardizing the procedures of measurement.
The steps taken to design the questionnaire, test its reliability (Cronbach’s alpha), check validity (content, construct, criterion), and administer it in a study represent instrumentation.
Essentially it is the process of creating, refining, and using instruments.
Key Difference:
Instrument = the measurement tool.
Instrumentation = the process/method of using or developing measurement tools.
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✅ Illustration in quantitative research:
If you’re studying community awareness of obstetric fistula in Osun State:
The instrument could be a structured questionnaire with closed-ended questions.
The instrumentation would cover how you designed the questionnaire, tested it for validity and reliability, piloted it, and then administered it
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