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PubMedDate not supplied

[Use of psychopathometric procedures in diagnosis of dementia exemplified by a comparison between the Mini-Mental State and the MWT/KAI (Multiple-Choice Vocabulary/General Intelligence Test Short-Form) test system].

Different definitions of dementia have resulted in various psychopathometric diagnostic instruments. For that reason, the validity of the test or test battery is related to the originating definition of dementia. There are short tests which can be easily handled (e.g., Mini-Mental State or the test battery Multiple-Choice-Vocabulary-Intelligence Test/Short Test for General Intelligence). These tests can be used for the verification of a severe intellectual and mnemonic deterioration or a relative decrease of the mental capacity. For their objectivity, reliability and validity they are suitable for diagnostic routine. However, two aspects should be taken into consideration: Before using psychopathometric tests which aim at objectifying a decrease of mental capacity and indicating the degree of severity, it is necessary to make a differential diagnosis for particularly excluding so-called pseudodementia. It is also a fact that a single test is not sufficient for registering each degree of severity. The Mini-Mental State test can be used for documenting moderate to severe cases of dementia. The test battery Multiple-Choice-Vocabulary-Intelligence Test (MWT)/Short Test for General Intelligence (KAI) is suitable for the diagnosis and follow-up of mild to moderate cases.

Aged↗
PubMed1994

No differential heritability of intelligence test scores across ability levels in Norway.

The possibility of differential heritability of intelligence test scores across levels of ability has been raised in several recent reports. In the present paper intelligence test data from 862 monozygotic and 1325 dizygotic male twin pairs tested at about 19 years of age were analyzed in search for changes in heritability and shared environmentality as a function of ability level. The analyses were performed by means of multiple regression models (e.g., Cherny et al., 1992). No evidence of differential heritability across different ability levels was detected.

Adult↗
PubMed1999

Serial intelligence test scores in pediatric moyamoya disease.

Serial intelligence tests in 38 patients with childhood moyamoya disease were evaluated. A total of 98 tests were administered. The IQ scores were classified into three categories: tests performed between the time of onset of symptoms and 5 years after the onset of symptoms (n = 44), tests performed 5-10 years after the onset of symptoms (n=32), and tests performed more than 10 years after the onset of symptoms (n=22). When more than one test was performed during each period, the mean of the IQ scores was used. The IQ tests were administered two or more times to 10 patients in the onset-5-years category, and 5 of them exhibited lower IQ scores on later tests. The IQ scores were significantly lower in the 5-10 years category and in the more than 10 years category (76.8 +/- 23.1 and 73.9 +/- 31.1, respectively) than in the onset-5-years category (92.9 +/- 22.7). The IQ scores for the 5-10 years category and the more than 10 years category did not differ significantly. The IQ in pediatric moyamoya disease begins to decrease after the onset of symptoms, but the decline eventually stabilizes more than 10 years after the onset of symptoms.

Adolescent↗
PubMed1993

Correlations of the Kahn Intelligence Test and the WAIS--R IQs among mentally retarded adults.

Correlations of scores on the WAIS--R and Kahn Intelligence Test: Experimental (KIT) were examined. The 21 subjects were moderately and severely adaptively impaired adults. The WAIS--R is frequently included in the evaluation of moderately and severely retarded adults but its use has been questioned given the problem of statistical floor because institutionalized mentally retarded adults were excluded from the standardization sample. Tasks demand verbal communication and timed performance. The KIT is utilized as a test of intelligence that requires limited verbal skills, is less influenced by cultural/educational factors, and has an adequate statistical floor. Results suggested significantly lower mean scores on the KIT than on WAIS--R. If further evidence supports these conclusions, the KIT may be a valuable instrument in the assessment of moderately and severely retarded adults.

Adult↗
PubMed1989

Manual proficiency in Cattle's Intelligence Test in left-handed male and female subjects.

The relationship between nonverbal intelligence (spatial reasoning) and manual proficiency was studied in male and female left-handers. Manual proficiency was assessed by measuring the speed and accuracy in performing the dot-filling test. Nonverbal intelligence was assessed by Cattle's Culture Fair Intelligence Test. Females were found to be better than males in left-hand performance, and were more lateralized than males in manual proficiency. No significant sex difference could be established in right-hand performance. The right-hand skill was positively correlated to test intelligence (p less than 0.001). There was a negative correlation between the left- minus right-hand skill difference and the scores for nonverbal intelligence (p less than 0.001). The left-hand skill did not show any correlation with nonverbal IQ. It was concluded that the left-hemisphere is of utmost importance even for nonverbal intelligence; strong cerebral lateralization is disadvantageous for spatial reasoning.

Adult↗
PubMed2003

Intelligence test score and educational level in relation to BMI changes and obesity.

OBJECTIVE: To investigate whether intelligence and education are related to subsequent BMI changes and development and persistence of obesity in men from young adulthood through middle-age. RESEARCH METHODS AND PROCEDURES: Subjects were selected among men (median age, 19 years; examined between 1956 and 1977) appearing at Danish draft boards: a group with juvenile-onset obesity, including all men with a BMI of >/=31.0 kg/m(2); and a nonobese group randomly selected as a 1% sample of the study population. The obese group and 50% of the nonobese group were invited to participate in follow-up studies between 1982 and 1984 and between 1992 and 1994. Among 907 men with juvenile-onset obesity and 883 nonobese men, age, examination region, intelligence test score, education, and BMI from baseline to first follow-up were analyzed by multiple linear and logistic regressions analyses. RESULTS: Education and intelligence, analyzed separately, were inversely related to BMI changes in both groups and to the development of obesity in the nonobese group. When adjusted for education, the association between intelligence score and BMI changes and development of obesity vanished, whereas the inverse relationship for education persisted only for BMI changes. Intelligence score was not associated with the persistence of obesity in the obese group, whereas inverse relationships were found for education. DISCUSSION: Intelligence test score was inversely related to risk of BMI changes and the risk of development of obesity, perhaps with education acting as a mediator or indicator of cognitive ability. Education, but not intelligence, was inversely associated with risk of remaining obese.

Adult↗
PubMed1981

Effects of psychotropic drugs on intelligence test performance of institutionalized mentally retarded adults.

Twenty-four institutionalized mentally retarded persons received intelligence tests under both standard and reinforcement conditions while on and off psychotropic medication. Medications included chlorpromazine (Thorazine), thioridazine (Mellaril), haloperidol (Haldol), mesoridazine (Serentil), and lithium carbonate (Lithane). Results showed that when on medication there were no differences between IQs obtained under standard and reinforcement conditions. When off medication there were significant increases in scores obtained under both standard and reinforcement conditions. The increase in scores under the reinforcement condition was 23 points greater than the increase obtained under the standard condition (increases of 30.2 and 6.9 points, respectively). Results were discussed in terms of the sensitivity--insensitivity of intelligence test scores to medication effects, medications impairing responding to external reinforcement contingencies, and legal implications.

Adult↗
PubMed2004

Low intelligence test scores in 18 year old men and risk of suicide: cohort study.

OBJECTIVE: To examine the association between intelligence test scores in men, measured at age 18, and subsequent suicide. DESIGN: Record linkage study of the Swedish military service conscription register (1968-94) with the multi-generation register, cause of death register and census data. Four tests were performed at conscription covering logic, language, spatial, and technical skills. SETTING: Sweden. PARTICIPANTS: 987 308 Swedish men followed up for 5-26 years. MAIN OUTCOME MEASURE: Suicide. RESULTS: 2811 suicides occurred during follow up. The risk of suicide was two to three times higher in those with lowest compared with the highest test scores. The strongest associations were seen with the logic test: for each unit increase in test score the risk of suicide decreased by 12% (95% confidence interval 10% to 14%). Associations were only slightly attenuated when we controlled for parents' socioeconomic position. Greatest risks were seen among poorly performing offspring of well educated parents. CONCLUSIONS: Performance in intelligence tests is strongly related to subsequent risk of suicide in men. This may be due to the importance of cognitive ability in either the aetiology of serious mental disorder or an individual's capacity to solve problems while going through an acute life crisis or suffering from mental illness.

Educational Status↗
PubMed1982

EEG correlation with intelligence test performance in senescence: a new pattern discriminative approach.

Two hundred and seventeen geriatric EEGs were quantitatively analyzed in relation to their intelligence test performances. The subjects were divided into three graded intellectual levels according to their test score in the three diagnostic categories classified with respect to hemiplegia. By means of a novel method using auto-regressive analysis and multivariate analysis, the mean spectrum patterns were numerically compared and classified in terms of general pattern similarities. As the results were in good accord with their intelligence test performances, it was suggested that there were proportional changes of EEG along with the intellectual deterioration. In that occasion, changes in frequency and dumping characters of alpha activity made the most significant contribution. These results suggest that an assessment of intellectual level might be possible through the EEG examination applied in this study and that a prediction of prognosis might also be expected.

Aged↗