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Understanding Business Research Terms and Concepts

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Understanding Business Research Terms and Concepts: Part 4
Que McMannis
Res 351
03/17/2015
Mark Robinson

Abstract
The three most commonly used research instruments in quantitative research
Studies include Questionnaire, Tests, and Surveys. Validity is the degree to which an instrument measure what it is purports to measure. Imprecise information collection can influence the outcome of a study and eventually lead to unacceptable results. Reliability is the internal consistency or stability of the measuring device over time (Gay, 1996).
The collection data of Quantitative methods depend on random sampling and organized data collection instruments that fit different involvement into fixed response groups (www.mbaisherebyravali.com). An important aspect of the quantitative research design is the non-probability method. Through the non-probability method, there are many sampling designs such as convenience sampling, purposive sampling and model instance sampling (www.wilderdom.com).
Listed below are two Quantitative strength approaches. The first quantitative strength approach is offering vivid data; for example, permitting us to take pictures of an employer population (www.library.pinpoint.com). Another strength is quantitative research have the ability to translate numbers and data in quantifying graphs and charts. (www.library.pinpoint.com)
The first weakness of the quantitative approach is large samples are needed thus causing the study to be more expensive, time- consuming and make it susceptible to error. The second quantitative approach is the misuse of sampling and weighing can undiscovered the accuracy ultimately, the validity and strategy of the quantitative research study (www.library.pinpoint.com).
The Questionnaire instrument- Can reach a large number of people relatively quickly and economically, and it is less time-consuming. The Test

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