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General Issues in Scaling

General Issues in Scaling. What Is a Scale?. The assignment. What Is a Scale?. The assignment. ...of objects. Are you willing to permit immigrants to live in your country? Are you willing to permit immigrants to live in your neighborhood? Would you let your child marry an immigrant?.

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General Issues in Scaling

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  1. General Issues in Scaling

  2. What Is a Scale? The assignment...

  3. What Is a Scale? The assignment... ...of objects... Are you willing to permit immigrants to live in your country? Are you willing to permit immigrants to live in your neighborhood? Would you let your child marry an immigrant?

  4. What Is a Scale? The assignment... ...of objects... ...to numbers... Are you willing to permit immigrants to live in your country? Are you willing to permit immigrants to live in your neighborhood? Would you let your child marry an immigrant?

  5. What Is a Scale? The assignment... ...of objects... ...to numbers... Are you willing to permit immigrants to live in your country? Are you willing to permit immigrants to live in your neighborhood? Would you let your child marry an immigrant? ...according to a rule...

  6. What Is a Scale? The assignment... ...of objects... ...to numbers... Are you willing to permit immigrants to live in your country? Are you willing to permit immigrants to live in your neighborhood? Would you let your child marry an immigrant? Cumulative ...according to a rule...

  7. Scale Versus Response Scale Scale Response Scale Is used to collect the responsefor an item Results from a process

  8. Scale Versus Response Scale Scale Response Scale

  9. Scale versus Response Scale Scale Response Scale Results from a process

  10. Scale Versus Response Scale Scale Response Scale Is used to collect the responsefor an item. Results from a process. Each item on scale has a scale value.

  11. Scale Versus Response Scale Scale Response Scale Is used to collect the responsefor an item. Results from a process. Each item on scale has a scale value. Item not associated with a scale value.

  12. Scale Versus Response Scale Scale Response Scale Is used to collect the responsefor an item. Results from a process. Each item on scale has a scale value. Item not associated with a scale value. Refers to a set of items.

  13. Scale Versus Response Scale Scale Response Scale Is used to collect the responsefor an item. Results from a process. Each item on scale has a scale value. Item not associated with a scale value. Refers to a set of items. Used for a single item.

  14. Purposes of Scaling • Is the construct or concept a single dimensionalone? • What dimensions underlie some ratings? • For assigning valuesto responses. Hypothesis testing Exploration Scoring

  15. Dimensionality One-dimensional constructs

  16. Dimensionality One-dimensional constructs Height

  17. Dimensionality One-dimensional constructs Height Shorter Taller

  18. Dimensionality One-dimensional constructs Height Shorter Taller Thirst

  19. Dimensionality One-dimensional constructs Height Shorter Taller Thirst Less thirsty More thirsty

  20. Dimensionality One-dimensional constructs Height Shorter Taller Thirst Less thirsty More thirsty Self-esteem

  21. Dimensionality One-dimensional constructs Height Shorter Taller Thirst Less thirsty More thirsty Self-esteem Less More

  22. Dimensionality Two-dimensional construct

  23. Dimensionality Two-dimensional Construct Academic ability

  24. Dimensionality Two-dimensional construct Academic ability Verbal

  25. Dimensionality Two-dimensional construct Academic ability Verbal Worse Better

  26. Dimensionality Quantitative Two-dimensional construct Academic ability Verbal Worse Better

  27. Dimensionality Quantitative Two-dimensional construct Better Academic ability Verbal Worse Better Worse

  28. Dimensionality Three-dimensional construct

  29. Dimensionality Three-dimensional construct

  30. Dimensionality Semantic differential (meaning) Three-dimensional construct

  31. Dimensionality Semantic differential (meaning) Three-dimensional construct Evaluation

  32. Dimensionality Semantic differential (meaning) Three-dimensional construct Evaluation Unfavorable Favorable

  33. Dimensionality Semantic differential (meaning) Three-dimensional construct Potency Evaluation Unfavorable Favorable

  34. Dimensionality Semantic differential (meaning) Three-dimensional construct Potency Powerful Evaluation Powerless Unfavorable Favorable

  35. Dimensionality Semantic differential (meaning) Three-dimensional construct Activity Potency Powerful Evaluation Powerless Unfavorable Favorable

  36. Dimensionality Semantic differential (meaning) Three-dimensional construct Active Activity Potency Powerful Evaluation Passive Powerless Unfavorable Favorable

  37. Types of Scales One-dimensional • Easier to understand • Useful for understanding multidimensional • Many concepts may be one-dimensional • Reflect multiple properties simultaneously Multidimensional

  38. The Major One-Dimensional Scale Types • Thurstone • Likert • Guttman

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