Is it Possible to Obtain Reliably Established Geometric Means and Standard Deviations of Magnitude Estimations of Expressions of Frequency and Amount?

placeholder

magnitude estimation Technique

Is it Possible to Obtain Reliably Established Geometric Means and Standard Deviations of Magnitude Estimations of Expressions of Frequency and Amount?

Bass et al (1974) answered this same question. Specifically they pondered:Is it possible to obtain reliably established geometric means and standard deviations of magnitude estimations of expressions of frequency and amount used to modify attitudinal ratings, and if so, does the importance of the issue to the rater affect their rating? Findings: They did a […]

arnold on Sep 16, 2008

placeholder

grouping

When Choosing a Questionnaire Format is it Better to Use Grouping or Should You Use Randomized Items?

Schriescheim et al (1989) wrote an an article where they conducted three studies exploring the effect of two questionnaire formats (grouping versus randomized items) on internal consistency and test-retest reliability, convergent and discriminant validity, and accuracy in respondent-provided descriptions. Conclusion: They found that neither format (group/random) is superior to the other on any of the […]

arnold on Sep 16, 2008

placeholder

Psychometrics

Is There a Difference in the Relative Benefits of the Thurstone and Likert Attitude Scales?

Bartlett and Weaver (1962) took a shot at answering that question. Here is what they found:THE BASIC ARGUMENT:The scholars seem to have been indecisive on the relative benefits of Thurstone and Likert attitude scales. This papers aims to examine this issue through comparison of both scales in terms of reliability and time efficiency. CONTRIBUTION:The findings […]

arnold on Sep 16, 2008

placeholder

Psychometrics

How does the Magentic Board Technique Compare to Other Scaling Techniques?

Probably not to relevant of a question these days, but I will answer it anyways. Bartlett et al (1960) did a study that compared the magnetic board scaling technique to five other popular techniques. Five Other Scaling Methods:1. Paired Comparison2. Ranking Technique3. Graphic and magnetic board technique4. Likert5. Equal appearing intervals Major Hypothesis: The magnetic […]

arnold on Sep 16, 2008

placeholder

artifactual factors

How can you help to control for oppositely worded items producing an artifactual factor structure?

Spector et al (1997) wrote an article to show that artifactual items can be produced by factor analysis when researchers use negative items on a survey because people will only endorse (agree with) items that are close to their true level of the construct, and will disagree with items that are far away in either […]

arnold on Sep 16, 2008

placeholder

Psychometrics

What is Response Bias?

Response bias is a type of cognitive bias which can affect the results of a statistical survey if respondents answer questions in the way they think the questioner wants them to answer rather than according to their true beliefs. This may occur if the questioner is obviously angling for a particular answer (as in push […]

arnold on Sep 16, 2008