discussion questions and topics 4 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Discussion Questions and Topics (4) PowerPoint Presentation
Download Presentation
Discussion Questions and Topics (4)

Loading in 2 Seconds...

play fullscreen
1 / 7

Discussion Questions and Topics (4) - PowerPoint PPT Presentation


  • 151 Views
  • Uploaded on

Discussion Questions and Topics (4). Measurement and Scaling. Terms to know. Operational definition Measurement of constructs Scaling types as tools: Nominal Ordinal Interval Ratio. What are the sources of variation in measured score?. True differences

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Discussion Questions and Topics (4)


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Discussion Questions and Topics (4) Measurement and Scaling

    2. Terms to know • Operational definition • Measurement of constructs • Scaling types as tools: • Nominal • Ordinal • Interval • Ratio

    3. What are the sources of variation in measured score? • True differences • Stability in individual characteristics • Transient factors • Situational Factors • Variations in administration • Sampling of items • Clarity of measurement instrument • Mechanical factors

    4. Comment and Prove • If a measure is valid, then it is reliable. • X0=XT+XS+XR • XO= Observed Score • XT= True Score • XS= Systematic Error • XS= Random Erro

    5. How doyou infer validity of a measure? • Indirect Evidence by reliability • Where XR=0 • Direct evidence by validity • Where XO=XT • Domain Sampling Model

    6. Indirect Evidence Via Reliability Coefficients Direct Evidence Via Validity Coefficients Test-retest Alternate forms Split half Coefficient  Predictive validity Content validity Construct validity Convergent validity Discriminant validity

    7. What is the procedure for scale development? • Let’s look at Consumer Discontent Scale and identify the steps in developing this scale?