title: Development of the Tower of London-Revised.
abstract: The objective of this work was to reconstruct the Tower of London (TOL) test in order to increase its reliability. A three-phase process was undertaken to accomplish this goal. In Phase 1, the TOL item pool was increased, the task was administered to a sample of college students (N = 50), and item-total correlations were calculated in order to identify the items that had the highest correlation with the total score. In Phase 2, the revised 30-item TOL (TOL-R) was administered to a second sample (N = 50) and the internal consistency reliability (Chronbach alpha) was estimated at. 794. Finally, Phase 3 examined the test-retest reliability of the TOH-R on a new sample (N = 34) and the stability was found to be acceptable at r =.70.
authors.affiliation: University of Northern Colorado, Greeley 80639, USA.
authors.forename: G M
authors.initials: GM
authors.lastname: Schnirman
authors.forename: M C
authors.initials: MC
authors.lastname: Welsh
authors.forename: P D
authors.initials: PD
authors.lastname: Retzlaff
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests / Q000592:standards*; D011340:Problem Solving; D011594:Psychometrics; D015203:Reproducibility of Results; D013334:Students / Q000523:psychology; D013647:Task Performance and Analysis