| Level | Item |
| Ref No | BPS/004/1/06/01/149 |
| Title | S.P. Test Follow-Up Report No. 14b |
| Date | 11 November 1942 |
| Extent | 1 item |
| Description | Report titled 'S.P. Test Follow-Up Report No. 14b' (no. 49) by Philip E. Vernon.
The report focuses on the reliability and validity of the progressive matrices test. In Part I, it outlines the statistical evidence for this claim. This includes comparison to other tests of ability, as well as correlations of test scores and training proficiency. The Matrices are then evaluated for factor content, data for which is presented in a table. However, the report notes that using a batter of tests such as SP yields more reliable results than using the Matrices as a standalone test. Furthermore, it has rather poor consistency, implying that performance on the test is dependent on many uncontrolled factors, such as mood or fatigue. In Part II, further investigation is conducted for the reliability of the Matrix Test. Correlations and grade discrepancies between tests are presented in data tables. The report concludes by highlighting that the scope of the investigation is limited, showcasing a number of limitations. |
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| AccessConditions | Registered Users by Appointment Only. |
| AccessStatus | Open |
| Location | O16 |
| Copyright | Subject to the condition of the original, copies may be supplied for private research use only on receipt of a signed undertaking to comply with current copyright legislation. Permission to make any published use of material from the collection must be sought in advance from the Head of the History of Psychology Centre and Archives and, where appropriate, from the copyright owner. Where possible, assistance will be given in identifying copyright owners, but responsibility for ensuring copyright clearance rests with the user of the material |
| Rules | Description compiled in line with the following: ISAD (G) General International Standard Archival Description MAD3 Third Edition 2000 |
| ArchNote | Compiled by Sophie O’Reilly BPS Archivist History of Psychology Centre. |