Factor Stability as a Function of Item Variance [electronic resource] / Bruce Thompson.
Factor analysis can be a valuable tool for assessing validity; however, the reliabilities of identified factors must be attended to. This study examined the impacts of item variance on factor stability and structure. The attempt was to determine empirically whether unnumbered graphic scales scored u...
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| Main Author: | |
| Format: | Electronic eBook |
| Language: | English |
| Published: |
[S.l.] :
Distributed by ERIC Clearinghouse,
1981.
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| Subjects: |
MARC
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| 100 | 1 | |a Thompson, Bruce. | |
| 245 | 1 | 0 | |a Factor Stability as a Function of Item Variance |h [electronic resource] / |c Bruce Thompson. |
| 260 | |a [S.l.] : |b Distributed by ERIC Clearinghouse, |c 1981. | ||
| 300 | |a 14 p. | ||
| 500 | |a ERIC Note: Paper presented at the Annual Meeting of the Southwest Educational Research Association (Dallas, TX, 1981). |5 ericd. | ||
| 520 | |a Factor analysis can be a valuable tool for assessing validity; however, the reliabilities of identified factors must be attended to. This study examined the impacts of item variance on factor stability and structure. The attempt was to determine empirically whether unnumbered graphic scales scored using a larger number of scale steps produce more stable factors than do unnumbered graphic scales scored using a smaller number of scale steps. Inservice teachers read and rated their preference of summaries of 16 models of teaching. The scales were rescored using five different numbers of scale steps. Results suggest that researchers need not be concerned that an overly-specific scoring metric will distort the meaning of the identified factors. In addition, it is concluded that unnumbered graphic scales are a promising method of collecting attitudinal data, particularly if the scales are scored with a reasonably large number of scale steps. (Author/GK) | ||
| 650 | 0 | 7 | |a Attitude Measures. |2 ericd. |
| 650 | 1 | 7 | |a Factor Analysis. |2 ericd. |
| 650 | 0 | 7 | |a Factor Structure. |2 ericd. |
| 650 | 0 | 7 | |a Psychometrics. |2 ericd. |
| 650 | 1 | 7 | |a Rating Scales. |2 ericd. |
| 650 | 1 | 7 | |a Research Problems. |2 ericd. |
| 650 | 0 | 7 | |a Scoring. |2 ericd. |
| 650 | 0 | 7 | |a Test Reliability. |2 ericd. |
| 650 | 1 | 7 | |a Test Validity. |2 ericd. |
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