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At least 19 recordsLinked to original sources
PubMed1981

Age effects on Trail Making Test performance.

The Trail Making Test, used in differentiating brain-damaged from non-brain-damaged individuals, was administered to 150 non-brain-damaged subjects classified into five age decades to determine the effects of age on performance. Between-group comparisons as well as correlational data indicated that older subjects performed significantly more poorly than younger subjects. Significant small negative correlations of performance with education and intelligence suggested that lower intelligence and education also may adversely affect performance. Some implications of these findings for clinical neuropsychology are discussed.

Adult↗
PubMed1995

Construct validity in the Trail Making Test: what makes Part B harder?

The Trail Making Test (TMT) is primarily a test of motor speed and visual attention. In Trail Making, Part A, the subject's task is to quickly draw lines on a page connecting 25 consecutive numbers. In Part B, the subject must draw the lines alternating between numbers and letters. To determine what makes Part B harder than Part A, variations of the standard Trail Making Test were assessed. Forty college students (20 male, 20 female) were given four forms of the Trail Making Test. The results show that Trail Making, Part B with just numbers took longer to complete than the standard Part A with numbers. Part B is 56 cm longer and has more visually interfering stimuli than Part A. These results indicate that Part B is more difficult than Part A not only because it is a more difficult cognitive task, but also because of its increased demands in motor speed and visual search.

Adolescent↗
PubMed1982

Trail Making Test and visual search.

The performance in the Trail Making Test (Form A) was correlated with a variety of verbal and nonverbal tests in 5 groups of patients: Broca's aphasics (N = 18), Wernicke's aphasics (N = 19) and nonaphasic patients with right hemisphere (N = 20), left hemisphere (N = 17) or diffuse (N = 18) lesions. Correlations with the Trail Making Test were found for two tests, both requiring visual search. The "Objects Finding Test" in which the target varies from item to item showed high correlations for all groups of patients. The "Hidden Patterns Test", in which the target is kept constant, correlated only on the groups of nonaphasic patients. It is concluded (1) that visual search, as tested here, is not restricted to lateralized cortical functions, and (2) that the performance in the Trail Making Test depends largely upon processes involved in visual search of varying targets.

Adult↗
PubMed1995

Trail Making Test norms for psychiatric patients.

The Trail Making Test was administered to a sample of 661 inpatients in a publicly supported psychiatric hospital. The patients' mean IQ of 83.7 (SD = 13.0) was in the low end of the low average range. Multiple regression analysis of the scores showed significant IQ and age components of Trail Making Test scores; however, education and gender differences in performance were not significant once IQ and age were factored into the regression equation. Ability-based norms using time in seconds to completion as the score and IQ as a moderator variable are presented. Such norms allow more appropriate evaluation of the differential cognitive functioning of this population than previously published norms. Normal standard score conversions from raw scores, the intercept, regression weights for IQ and age, and standard error of the regression for both the Trails tasks are provided for individuals desiring to write a program to provide scores corrected for IQ and age.

Adult↗
PubMed1985

Application of the Trail Making Test in differentiating neuropsychological impairment of elderly persons.

This study investigated differences in Trail Making Test performance as a function of over-all level of neuropsychological impairment in a sample of elderly patients diagnosed as having various dementing diseases. Patients were classified as mildly, moderately, or severely impaired (ns = 19, 25, 26) based on the seven measures used to compute the Impairment Index of the Halstead-Reitan Neuropsychological Battery. The mean ages for the mildly, moderately, and severely impaired groups were 67.72, 71.56, and 71.16 yr., respectively. Using level of impairment as the grouping variable, subjects were compared on the mean number of seconds required to complete Trail Making Test A, B, and A + B. Three one-way analyses of variance indicated significant differences for Parts A, B, and A + B. As over-all level of impairment increased, time required to complete the Trail Making Test increased. Results are discussed and directions for further research are recommended.

Age Factors↗
PubMed1978

The Trail Making Test and Bender Background Interference Procedure as screening devices.

The Trail Making Test and Bender Background Interference Procedure were evaluated with 598 Ss against both external neurologic criteria and against psychological opinion derived from a more complete evaluation. For Trails, highly significant differences in mean scores were seen when preselected neurologic patients and patients without neurologic stigmata were compared. Similarly, the distribution of classification of these patients by Bender is significantly different from chance. Application of these measures in a screening paradigm, however, yielded large numbers of false negatives against both neurological and psychological criteria. It was not possible to establish an optimal cutting score to justify application of these measures as screening devices, either alone or in concert.

Adult↗
PubMed1977

Assessment of cognitive recovery in alcoholics by use of the trail-making test.

Cognitive recovery among male alcoholics and controls was investigated with the Trail-Making Test as an index of cognitive impairment. The test was administered twice to all Ss with an interval of approximately 1 year between testings. A reported measures analysis of variance showed that the controls performed significantly better than the alcoholics at both administrations, although the alcoholics did improve between the pre-and posttests. Reported drinking episodes that occurred between the pre-and posttests appeared to have no effect on cognitive recovery in the alcoholic group when relapsed and abstinent subgroups were compared.

Adult↗
PubMed1994

The Trail Making Test A and B: a technical note on structural nonequivalence.

The major structural aspect of the Trail Making Test, length of drawn lines needed to complete the tests, was measured and compared for the adult and school-aged child versions. Trail Making B is a markedly longer test than Trail Making A, 32% for adults and 27% for school-aged children. The interpretive assumptions that Trail Making B differs from Trail Making A only in terms of the cognitive skills needed to complete the test and the implicit interpretive bias toward minimizing the motor component of the tests were challenged in this technical note.

Adult↗
PubMed1978

Diagnostic efficiency of the Trail Making Test as a function of cut-off score, diagnosis, and age.

This study is a reinvestigation of the effectiveness of the Trail Making Test in discriminating between brain-damaged (n = 51) and pseudoneurologic (n = 72) subjects. All subjects were hospitalized male veterans at the Allen Park Veterans Administration Hospital. An analysis of covariance showed that the pseudoneurologic subjects performed at a significantly higher level than the brain-damaged subjects. Further analysis with two different cut-off scores exhibited unequal discriminatory power throughout the whole range of Trail Making Test scores. These results suggested diagnosing only when the scores were 9 or lower and 13 or higher. This use of extreme scores resulted in an over-all hit rate of 87% in the study. Comparisons with five major subgroupings of the pseudoneurologic subjects yielded only one significant difference: more accurate discrimination with the 12 cut-off score between 10 general-medical and peripheral nerve-damaged subjects (100% correct) and 18 psychotic subjects (39% accuracy).

Adolescent↗
PubMed1990

Neuropsychological false positives in litigation: trail making test findings.

100 workers' compensation claimants with no known history of brain injury and no claim for neuropsychological impairment were administered a generally accepted neuropsychological screening instrument, the Trail Making Test, to consider the possibility that the presence of litigation may be reflected in neuropsychological test scores. On Trails A and B, respectively, 40% and 36% of subjects scored in the impaired range. Clinicians are urged to interpret the results of the Trail Making Test cautiously when a patient is in litigation. Suggestions for research are offered.

Adult↗
PubMed1990

Emotional impact on trail making test performance.

This study assessed the effect of emotional factors on Trail Making Test Part B performance for a sample of 105 neuropsychological referrals for whom there was no neurodiagnostic evidence of brain damage. Trails B scores declined in relation to elevated MMPI scores on Scales 6, 7, and 8, though only nine patients performed within the impaired range. The results suggest that (a) Trails B performance is resilient to a variety of emotional influences, (b) psychotic symptoms and severe anxiety impede Trails B performance, though rarely to the extent caused by brain damage, and (c) the MMPI provides objective criteria that help rule out emotional effects on Trails B performance.

Adult↗
PubMed1987

Relationships between parts A and B of the Trail Making Test.

Two measures of relationship between Parts A and B of the Trail Making Test (TMT) were examined in a large, acute rehabilitation population (N = 497). A difference (B-A) and a ratio (B/A) score were calculated and compared to other neuropsychological measures. The difference score was found to be correlated highly with intelligence and severity of impairment and, to a lesser degree, with age, education, and memory functioning. The ratio measure was correlated moderately or showed no significant relationship with other variables. This finding supported the curvilinear nature of the relationship between the ratio measure and cerebral impairment, as suggested by Golden, Osmon, Moses, and Berg (1981). Both measures were examined for their ability to distinguish between right and left cerebral damage. Only a trend toward differentiating lateralized damage was found; the ratio measure and a geometric transformation of the ratio showed greater sensitivity than did the difference measure. Results are discussed in terms of the potential usefulness of TMT relationship measures in neuropsychological inference.

Brain Damage, Chronic↗
PubMed1984

The Trail Making Test and Canter Background Interference Procedure in screening for organicity in chronic schizophrenia: a preliminary report.

For 10 male organic chronic schizophrenics scores on the Trail Making Test and Canter Background Interference Procedure were compared. These patients had severe hyponatremia, a condition that results in brain damage. The hit rate for correctly classifying the oranicity was 100% on the basis of sequence binding on Trial Making B and 50% on Canter's procedure. The findings suggested that the Trial Making Test may prove useful in discriminating organic from nonorganic schizophrenics. Implications for research were discussed.

Chronic Disease↗
PubMed1989

Analysis of errors on the Trail Making Test.

This study was designed to determine whether the number and/or types of errors on the Trail Making Test differentiated head-injured and normal control subjects. Errors on Part B were categorized into two types of shifting errors (from number to letter and from letter to number) and two types of sequencing errors (number and letter). Subjects consisted of 133 head-injured patients and 145 normal controls. Analysis showed that the frequency of errors on Parts A and B did not differ significantly between the groups nor did the percentage of subjects making errors. Total shifting and sequencing errors also did not differentiate between the two groups. Although head-injured subjects were more likely than controls to err in shifting from letters to numbers, this finding was of no apparent clinical usefulness. The discriminative value of time scores was confirmed.

Brain Damage, Chronic↗