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Research Designs Sebastian M. Rasinger Quantitative Research in Linguistics. 2e 2013 London: Bloomsbury S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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The research process Research Question Research Area S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Quantitative data can be put into numbers can be used for statistic analysis NOT necessarily ‘much data’ Deductive: theory hypotheses data confirm/reject H Examples of quantitative variables – people’s age – test scores S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Qualitative data ‘words’, ‘text’, ‘qualities’, ‘patterns’ how is something, rather than how much interpretative inductive: theory is derived from the research results S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Research Designs Longitudinal vs. cross-sectional – Change vs. status quo Experimental vs. natural – Deliberate manipulation of variable/s? – (vs. quasi-experimental) S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Data – some practicalities How much data? – As much as you need to make a coherent argument… – No need to prove beyond reasonable doubt – Does your data ‘make sense’ given the topic and previous theory S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Data – some practicalities (2) Whatever method you use: pilot it!! – What’s going well? – What’s going horribly wrong? – Why have things gone wrong? Is it your instrument? Is it you? Is it both? – Adjust accordingly and, ideally, pilot again S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Causality A causes B Notoriously difficult to prove!! 1.Variables A and B must correlate with each other, that is, their values must co-occur in a particular pattern: for example, the older a speaker, the more dialect features you find in their speech. 2.There must be a temporal relationship between the two variables A and B, that is, B must occur after A. 3.The relationship between A and B must not disappear when controlled for a third variable. S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Reliability and Validity Reliability: Does you method repeatedly measure what it’s supposed to measure? I.e. if you use the method under exactly the same circumstances, do you get the same result? – Split-half – Test-retest Validity – Does you method measure what it’s supposed to measure? S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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Samples and Sampling Part of population (P). Population = all people who show certain characteristics (e.g. year 2 undergraduate students at British universities) Reflection of P, i.e. characteristics equal those of P Ideally: random sample. Every member of P has equal chance to be member of sample Realistically: opportunistic sample. Take what you can get. But check that it’s not completely off P use personal judgement S.M.Rasinger. 2013. Quantitative Research in Linguistics. 2e. Bloomsbury.
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