Speed as a Variable on Three Wisc Performance Subtests

1972 ◽  
Vol 34 (2) ◽  
pp. 451-455 ◽  
Author(s):  
James Woo-Sam ◽  
Irla Lee Zimmerman
Keyword(s):  
Power Function ◽  
Block Design ◽  
Handicapped Child ◽  
Normal Intelligence ◽  
Design Object ◽  
Picture Arrangement ◽  
Normal Limits ◽  
Test Materials ◽  
Performance Results

This study tested the hypothesis that for younger children of normal intellect, speed of performance plays a minimal if not negligible role in determining the obtained scores on the Block Design, Object Assembly, and Picture Arrangement subtests. It was further argued that if such were the case, then it was not necessary to exclude these subtests in the evaluation of the orthopedically handicapped child capable of manipulating the test materials. Under these circumstances, a poor showing could not be attributed to loss of bonus credits because of slow performance. Results based on five groups of children of normal intelligence ages 7 1/2 through 13 1/2 yr. ( N = 119) indicate that the Block Design and Object Assembly subtests essentially measure a power function through age 10 1/3. Speed is a determinant by age 13 1/2. On the Picture Arrangement subtest, the power function holds only at age 7 1/2. However, a score within normal limits is possible without speed bonuses through age 9 1/2.

A 'protein bank' of Lotus uliginosus cv. Maku as an alternative to conventional protein supplements for weaned lambs grazing on natural pastures during summer and autumn

2015 ◽  
Vol 55 (1) ◽  
pp. 27
Author(s):  
L. Piaggio ◽  
M. de J. Marichal ◽  
A. Pastorín
Keyword(s):  
Soybean Meal ◽  
Block Design ◽  
Average Daily Gain ◽  
Feeding Strategies ◽  
Homogeneous Groups ◽  
Protein Supplements ◽  
Natural Pasture ◽  
Performance Results ◽  
Protein Block ◽  
Lotus Uliginosus

The aim of this study was to evaluate the use of restricted grazing of an improved natural pasture as an alternative to conventional protein supplements for weaned lambs grazing natural pastures during summer–autumn. Two natural pastures that differed in dry matter allowances were used as basal diets. Sixty Corriedale lambs, 3 months old, were divided into 10 homogeneous groups. For each natural pasture, one group of lambs was randomly assigned to one of the following treatments (at 10 lambs/ha): continuous grazing (control); control + protein block (150 g/lamb. day); control + soybean meal (100 g/lamb. day); control + supplemental protein obtained from grazing for 3 h/day a natural pasture improved with Lotus uliginosus cv. Maku; or same as previous, except that grazing was allowed 1 in 3 days. Performance results (final bodyweight, average daily gain, and difference between initial and final body scores) were analysed as a completely randomised block design with subsampling. Lambs grazing 3 h/day or 1 in 3 days on improved pasture or supplemented with soybean meal showed better (P < 0.05) performance than non-supplemented lambs. Lambs consuming the protein block performed similarly (P > 0.05) to control lambs. The experiment demonstrated that feeding strategies using controlled grazing of natural pastures improved with lotus Maku or soybean meal supplementation are effective to achieve target growth rates of weaned lambs grazing natural pastures in summer–autumn.

Wisc Factor Structure for Normal Negro Pre-School Children

1964 ◽  
Vol 15 (2) ◽  
pp. 543-548 ◽  
Author(s):  
R. Travis Osborne
Keyword(s):  
Factor Analysis ◽  
School Children ◽  
Digit Span ◽  
Block Design ◽  
School Level ◽  
School Factors ◽  
Intelligence Scale ◽  
Picture Arrangement ◽  
The Mean ◽  
Intercorrelation Matrix

In order to estimate the dimensionality of the Wechsler Intelligence Scale for Children, factor analysis was applied to a 30 by 30 intercorrelation matrix of the WISC and four reference tests. The 10 standard WISC subtests, except Coding, were split into two, three, or four parts to yield as many variables as possible. Ss, were 111 Negro pre-school children; mean age, 6 yr. 1 mo.; the mean full scale IQ was 84. Evidence is presented supporting 10 statistically significant orthogonal dimensions. Not all factors are perfectly congruent with the subtest structure of the WISC or concordant with the results of prior factorizations of the WISC at the pre-school level. There is no factor for Block Design apart from Picture Arrangement. The Digit Span subtest splits involve three different WISC factors, two are from the performance section of the test and one is from the verbal section. Coding is involved in only one factor; Manipulation of Areas, one of the non-verbal reference tests. At least 7 of the 10 significant pre-school factors are readily identified by WISC subtests or combinations of WISC subtests.

The Wechsler subtests in mild organic brain damage associated with folate deficiency

1984 ◽  
Vol 14 (2) ◽  
pp. 431-437 ◽  
Author(s):  
M. I. Botez ◽  
Thérèse Botez ◽  
Urs Maag
Keyword(s):  
Cerebrospinal Fluid ◽  
Digit Span ◽  
Block Design ◽  
Digit Symbol ◽  
Folate Supplementation ◽  
Neurological Signs ◽  
Picture Arrangement ◽  
Picture Completion ◽  
Organic Brain ◽  
Low Serum

SynopsisForty-nine patients with low serum and cerebrospinal fluid folate levels completed the Ottawa–Wechsler Scale after 7–11 months of folate supplementation (10 mg daily). Twelve patients exhibited major neurological symptoms, while 37 patients displayed depression and minor neurological signs. After folate therapy, Verbal, Performance and Full Wechsler scores were significantly improved (P ≺ 0·0·01). The order of improvement in scores on the Wechsler subtests (from the statistically most significant to the least as measured by the t-statistics) was: Block Design, Digit Symbol, Similarities, Picture Completion, Picture Arrangement, Arithmetic, Object Assembly, Digit Span, Information, and Comprehension.

scholarly journals SUFFICIENT NUMBER OF REPLICATES FOR ESTIMATION OF DISSIMILARITY MEASURES AMONG MAIZE CULTIVARS

2020 ◽  
Vol 19 ◽  
pp. 14
Author(s):  
ALBERTO ​CARGNELUTTI FILHO ◽  
MARCOS TOEBE
Keyword(s):  
Power Function ◽  
Coefficient Of Variation ◽  
Block Design ◽  
Dissimilarity Measure ◽  
Abscissa Axis ◽  
Dissimilarity Measures ◽  
Maize Cultivars ◽  
Randomized Block Design ◽  
Data Files ◽  
Independent Variable

The objective of this work was to determine the sufficient number of replicates for estimation of dissimilarity measures among maize cultivars. Data of five variables were used, which were evaluated in an experiment with 15 maize cultivars, in randomized block design with nine replicates. A number of 511 data files were formed, being 9, 36, 84, 126, 126, 84, 36, 9, and 1 obtained, respectively from 1, 2, 3, 4, 5, 6, 7, 8, and 9 replicates. Three dissimilarity matrices were determined between i and i’ cultivars containing, respectively, Euclidean, Manhattan, and Chebyshev distances. For each of the 105 distances between cultivars, in each dissimilarity measure, the power function was adjusted for the coefficient of variation of the (dependent variable) as a function of the number of replicates (independent variable), totaling 315 equations. For each equation, the abscissa axis value (Xs, sufficient number of replicates) was determined, corresponding to the maximum curvature point. With the increase of the number of replicates, there is an improvement in the accuracy of the estimates of dissimilarity measures among maize cultivars, however, the gains in precision decrease gradually. Six replicates are sufficient to estimate the dissimilarity measures among maize cultivars expressed by the Euclidean, Manhattan, and Chebyshev distances.

scholarly journals UJI TOKSISITAS SUB AKUT INFUS DAUN JARAK PAGAR (Jatropha curcas Linn.) TERHADAP GAMBARAN HISTOLOGI HATI MENCIT

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Surya Amal
Keyword(s):  
Mus Musculus ◽  
Jatropha Curcas ◽  
Liver Tissue ◽  
Block Design ◽  
Control Group ◽  
Cell Nuclei ◽  
Group Iii ◽  
Normal Limits ◽  
Group I ◽  
Membrane Cell

Penggunaan daun jarak pagar, khususnya sebagai obat antihipertensi, masih perlu didukung data toksisitas untuk menjamin keamanan pemanfaatannya. Telah dilakukan penelitian pengaruh infus daun jarak pagar (Jatropha curcas Linn.) terhadap gambaran histologi hati mencit (Mus musculus) yang diamati secara mikroskopik. Penelitian ini menggunakan 60 ekor mencit jantan yang dibagi dalam tiga kelompok konsentrasi : kelompok I, 5 % b/v; kelompok II, 10 % b/v; kelompok III, 20 % b/v ditambah satu kelompok kontrol. Kelompok I, II dan III serta kelompok kontrol masing-masing dibagi atas tiga subkelompok berdasarkan lama pemberian (15 hari, 30 hari, 45 hari). Masing-masing subkelompok terdiri dari 5 ekor mencit. Hasil pemeriksaan mikroskopik menunjukkan bahwa pemberian infus daun jarak pagar 5 % b/v, 10 % b/v dan 20 % b/v peroral sekali sehari dengan dosis 1 ml/30 gram berat badan memengaruhi struktur jaringan hati mencit. Pemberian infus daun jarak pagar 5 % b/v selama 15 hari menunjukkan struktur jaringan hati mencit yang masih dalam batas-batas normal. Kerusakan struktur jaringan hati mencit mulai terlihat setelah pemberian infus daun jarak pagar 5 % b/v selama 30 hari dan 45 hari yang meningkat dengan semakin besarnya konsentrasi dan lamanya masa pemberian.  Perhitungan secara statistik dengan menggunakan desain blok lengkap acak menunjukkan bahwa parameter susunan radier sel, sinusoid, membran sel, sitoplasma sel dan inti sel jaringan hati mencit mengalami kerusakan akibat pemberian infus daun jarak pagar 5 % b/v, 10 % b/v dan 20 % b/v dengan efek yang sangat berbeda nyata.   Kata kunci : jarak pagar, histologi hati, infus The use of Jatropha leaves, especially as an antihypertensive drug, still needs to be supported by toxicity data to ensure the safety of its use. Research on the effect of jatropha (Jatropha curcas Linn.) Infusion on mice (Mus musculus) histology was observed microscopically. This study used 60 male mice divided into three concentration groups: group I, 5% w / v; group II, 10% w / v; group III, 20% w / v plus one control group. Groups I, II and III and the control group each divided into three subgroups based on the length of administration (15 days, 30 days, 45 days). Each subgroup consists of 5 mice. Microscopic examination results showed that the administration of Jatropha leaf infusion of 5% w / v, 10% w / v and 20% w / v orally once a day at a dose of 1 ml / 30 grams of body weight affected the structure of the liver tissue of mice. The administration of Jatropha leaf infusion of 5% w / v for 15 days showed that the structure of the liver tissue of mice was still within normal limits. Damage to the structure of the liver tissue of mice began to be seen after administration of Jatropha leaf infusion of 5% w / v for 30 days and 45 days which increased with increasing concentration and length of administration. Statistical calculations using a randomized complete block design showed that the parameters of the cell radier, sinusoid, cell membrane, cell cytoplasm and liver cell nuclei of the mice suffered damage due to jatropha leaf infusion of 5% w / v, 10% w / v and 20 % b / v with a very different effect.   Keywords: jatropha, liver histology, infusion

Common Short Forms of the Spanish Wechsler Adult Intelligence Scale

1997 ◽  
Vol 85 (3) ◽  
pp. 1121-1122
Author(s):  
Yvonne I. Demsky ◽  
Carlton S. Gass ◽  
Charles J. Golden
Keyword(s):  
Block Design ◽  
Age Groups ◽  
Adult Intelligence Scale ◽  
Intelligence Scale ◽  
Wechsler Adult Intelligence Scale ◽  
Adult Intelligence ◽  
Short Forms ◽  
Picture Arrangement ◽  
Test Version ◽  
Wechsler Adult Intelligence

Although the Escala de Inteligencia Wechsler (EIWA) has remained the only standard Spanish version of the Wechsler Adult Intelligence Scale (WAIS) and is consequently the most often-used intelligence test with Spanish-speaking clients, little information exists on the psychometric properties of the test beyond the information in the test manual (Wechsler, 1968). There is no information on the validity or reliability of commonly used short forms of the test, the two-test version using Block Design and Vocabulary, and the four-test version using Block Design, Vocabulary, Arithmetic, and Picture Arrangement. Using the statistical data in the test manual, the two-test version yielded reliabilities of .94 to .95 across the three standardization age groups and validity ratings of .92 to .93. Values for the four-test version were slightly higher, and all were comparable to those for the WAIS and WAIS–R. The results suggest that the short forms can be used with the same confidence with the Spanish WAIS as on the WAIS.

scholarly journals Efficiency of maize cultivars for zinc uptake and use

2005 ◽  
Vol 62 (3) ◽  
pp. 264-273 ◽  
Author(s):  
Ângela Maria Cangiani Furlani ◽  
Pedro Roberto Furlani ◽  
Anderson Rotter Meda ◽  
Aildson Pereira Duarte
Keyword(s):  
Plant Height ◽  
Polynomial Regression ◽  
Block Design ◽  
Dilution Effect ◽  
Efficiency Index ◽  
Utilization Efficiency ◽  
Nutrient Concentrations ◽  
Maize Cultivars ◽  
Normal Limits ◽  
Zn Concentration

Zinc deficiency usually occurs in maize grown in Brazilian acidic soils. The aim of this study was to evaluate commercial maize cultivars for their Zn uptake and utilization efficiency. A greenhouse experiment using nutrient solution with young plants was carried out at Campinas, State of São Paulo, Brazil, in 2002. Treatments consisted of: 0.0; 0.1; 0.2; 0.4 and 0.8 mg L-1 Zn in the main plots and 24 commercial maize cultivars in the subplots, in a randomized complete block design. Zn concentration in shoot dry matter (SDM) ranged from 28.4 to 41.6 mg kg-1 among cultivars, clearly indicating a dilution effect, since a negative relation between SDM and plant height was shown. Total Zn-shoot content was a good parameter to discriminate cultivars, once correlated with plant height and SDM (r = 0.66** and r = 0.67**, respectively). Analysis of variance and polynomial regression for total Zn-shoot content was highly significant among cultivars and for the interaction cultivar vs Zn-concentration. Plants under low Zn presented up to three-fold differences among efficiency index values (E.I. = 8.59 to 26.42 mg² DM mug-1 Zn). The results with young plants indicated six maize cultivars classified as Zn-efficient and responsive (AG 7575, Tork, AL Bandeirante, AL 34, AGN 2012, Master) and six cultivars classified as efficient non-responsive (P30F33, P30K75, P30F80, AS 1533, DOW 8420 e AL 30). Other nutrient concentrations in the SDM were within normal limits (K, P, Ca, Mg, Cu, Fe, Mn) for maize young plants.

Pattern Analysis of Wisc Scores Achieved by Culturally Disadvantaged Children

1971 ◽  
Vol 29 (1) ◽  
pp. 191-194 ◽  
Author(s):  
Spurgeon Cole ◽  
Mildred Hunter
Keyword(s):  
Detrimental Effect ◽  
Pattern Analysis ◽  
Block Design ◽  
Disadvantaged Children ◽  
Picture Arrangement ◽  
Cultural Deprivation ◽  
Picture Completion ◽  
Culturally Disadvantaged

An analysis of the WISC profile for culturally disadvantaged children was undertaken to determine which subtests were least affected by experimental factors. Highest scores were earned on Picture Completion, Similarities, Comprehension and Vocabulary. Lowest scores were obtained on Information, Picture Arrangement, Math, Object Assembly, Coding and Block Design. There was no evidence to suggest that cultural deprivation has less detrimental effect on performance than verbal or abstract skills.

Comparative Validity of Two Wais—R Short Forms with Vocational Rehabilitation Clients

1986 ◽  
Vol 63 (3) ◽  
pp. 1303-1308 ◽  
Author(s):  
Gypsy Abbott Clayton ◽  
Gary L. Sapp ◽  
Patricia O'Sullivan ◽  
Livy Hall
Keyword(s):  
Vocational Rehabilitation ◽  
Emotionally Disturbed ◽  
Short Form ◽  
Block Design ◽  
Mentally Retarded ◽  
Full Scale ◽  
Short Forms ◽  
Picture Arrangement ◽  
Misclassification Rates ◽  
Physically Handicapped

Scores from two (Vocabulary, Block Design) and four (Arithmetic, Vocabulary, Block Design, and Picture Arrangement) subtest short forms of the WAIS—R were compared with the Full Scale IQs for vocational rehabilitation clients, 305 mentally retarded, emotionally disturbed, and physically handicapped subjects. Some large differences between mean IQs, some low correlations between IQs once corrected for spuriousness, and high misclassification rates suggest caution in using the short-form IQs. Use of the Full Scale IQ for screening vocational rehabilitation clients is recommended.

Roles of Interpersonal Contact and Verbal Content in Abstract Thinking Deficits of Schizophrenics

1973 ◽  
Vol 32 (3_suppl) ◽  
pp. 1023-1032 ◽  
Author(s):  
Charles G. Watson
Keyword(s):  
Interpersonal Communication ◽  
Block Design ◽  
Interpersonal Interaction ◽  
Abstract Thinking ◽  
Interpersonal Contact ◽  
Verbal Stimuli ◽  
Design Object ◽  
Verbal Content ◽  
Per Se ◽  
Category Tests

Previous research has suggested that the well-publicized loss of abstract ability by schizophrenics may reflect their difficulties with interpersonal communication rather than abstraction deficits per se. To test this hypothesis, the performance of process schizophrenics, reactive schizophrenics, and normals were compared on four Proverbs tests which varied in the amount of interpersonal communication they entailed. Also, to test the hypothesis that the abstraction deficits reflect only difficulties with verbal stimuli, the performance of the three groups was compared on abstraction tests composed of nonverbal stimuli (the Block Design, Object Assembly, and Category tests) and verbal symbols (the Proverbs tests). The results suggest that abstract thinking deficits in schizophrenics are more prominent in tasks composed of verbal stimuli. However, the results did not support the view that either autism or loss of ability to abstract in adult schizophrenics increases peculiarly with the amount of interpersonal interaction built into the task.

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