Regression with Dummy Variables - Melissa A. Hardy - cover

Regression with Dummy Variables

Melissa A. Hardy

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Collana: Quantitative Applications in the Social Sciences
Anno: 1993
Rilegatura: Paperback / softback
Pagine: 96 p.
Testo in English
Dimensioni: 215 x 139 mm
Peso: 140 gr.
  • EAN: 9780803951280

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It is often necessary for social scientists to study differences in groups, such as gender or race differences in attitudes, buying behaviour, or socioeconomic characteristics. When the researcher seeks to estimate group differences through the use of independent variables that are qualitative, dummy variables allow the researcher to represent information about group membership in quantitative terms without imposing unrealistic measurement assumptions on the categorical variables. Beginning with the simplest model, Hardy probes the use of dummy variable regression in increasingly complex specifications, exploring issues such as: interaction, heteroscedasticity, multiple comparisons and significance testing, the use of effects or contrast coding, testing for curvilinearity and estimating a piecewise linear regression.
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