Practice Effect on Number Facility Performance

1969 ◽  
Vol 24 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Kragg P. Kysor ◽  
James J. Hart
Keyword(s):  
Practice Effect ◽  
Actual Performance ◽  
Two Samples ◽  
Psychometric Measures ◽  
Individual Scores ◽  
Learning Data ◽  
Theoretical Performance

Equations were fitted to learning data obtained on the Number Facility (NF) subtest of the Repetitive Psychometric Measures. Ss were divided into three groups to increase the correlation between their individual scores and the resulting equations. The equations were derived from the pooled scores of two samples. The theoretical performance of Ss based on a logarthmic function was then compared with the actual performance of a third sample. The amount of variability accounted for by the equations ranged from 53 to 86%.

Evolution of Synthetic Fluid from Water Extract from Fermented Ground Maize (WEFGM) as an Alternative to Water-Based Cutting Fluids: Performance Test

2018 ◽  
Vol 1150 ◽  
pp. 59-66
Author(s):  
Taofeek Ayotunde Yusuf ◽  
Chibueze Nnorom ◽  
Olusola Femi Olusunmade
Keyword(s):  
Performance Test ◽  
New Technologies ◽  
Temperature Drop ◽  
Water Extract ◽  
Deionized Water ◽  
Additive Concentration ◽  
Actual Performance ◽  
Two Samples ◽  
Significant Difference ◽  
Water Based

The use of agricultural wastes and natural materials in new technologies is a novel subject. Consequently, an attempt has been made to formulate a synthetic fluid using an organic water, Water Extract from Fermented Ground Maize (WEFGM) and compare its performance with water-based sample in turning operation using a mild steel as workpiece. Two samples of synthetic fluids were formulated from each of deionized WEFGM, ordinary WEFGM and deionized water as base-fluids at two composition (5 and 10%vol) levels of selected additives. The results of experimental analysis of heat transfer properties of these synthetic fluids exist, hence the need to ascertain the actual performance output. Temperature-Time Gradient (TTG) which is a rate of temperature drop (heat withdrawn) from the work zone was used as evaluation parameters. The result showed that deionized WEFGM is the most efficient of the entire samples at both compositions with an average TTG of 3.61 and 2.16 °C/min at 10 and 5% additive concentration respectively. At lower additive concentration which is more economically advantageous, the performance rating is deionized WEFGM>>WEFGM>>deionized Water. This implies that WEFGM is more effective than water as a base fluid for synthetic fluid in performance as it has been previously so reported in properties. Meanwhile, T-test statistical analysis (using IBM SPSS 23) shows that there is highly significant difference in TTG at each time of application of individual fluid (p<0.05). However, TTG of one fluid sample is not significantly different from the other (p>0.05) implying that the fluids can all work as coolants and relatively have comparable performance output.

Repetitive Psychometric Measures: Equating Alternate Forms

1964 ◽  
Vol 14 (2) ◽  
pp. 335-338 ◽  
Author(s):  
Louis J. Moran ◽  
James P. Kimble ◽  
Roy B. Mefferd
Keyword(s):  
College Students ◽  
The Other ◽  
Difficulty Level ◽  
Correction Factors ◽  
Alternate Form ◽  
Two Samples ◽  
Psychometric Measures ◽  
Alternate Forms

The 20 alternate forms of five psychometric measures (Number Facility, Visualization, Speed of Perception, Speed of Closure, and Flexibility of Closure) were administered to two samples of 544 and 508 college students. All alternate forms but that for Number Facility were found to be reliably different in difficulty level. Statistical weights derived from either sample were found to decrease variability of alternate form means in the other sample. Correction factors were provided for the 20 alternate forms of all but the Number Facility measure.

Some Relationships Between Intelligence and Auditory Discrimination

1991 ◽  
Vol 34 (3) ◽  
pp. 621-627 ◽  
Author(s):  
Betty U. Watson
Keyword(s):  
Auditory Discrimination ◽  
Motor Tasks ◽  
Percent Correct ◽  
Motor Abilities ◽  
Significant Relationships ◽  
Academic Aptitude ◽  
Two Samples ◽  
Psychometric Measures ◽  
And Performance ◽  
Perceptual Abilities

Some of the earliest scientific attempts to understand the nature of intelligence investigated differences in sensory discrimination and reaction time. There is once again interest in the relations between such simple abilities and intelligence, partly as a result of the application of information-processing paradigms to the study of intelligence. Correlations in the range of .3 to .8 have been reported between psychometric measures of intelligence and performance on simple cognitive, sensory, and motor tasks The current study reports correlations between scores on a battery of auditory discrimination tasks and measures of intelligence and academic aptitude in two samples of college students. The correlations between the intellectual and academic aptitude measures and the total percent correct on the auditory battery ranged from .45 to .59. These results are consistent with recent findings of significant relationships between simple sensory, cognitive, and motor abilities and psychometric intelligence as well as with much earlier reports by Spearman (1904) and others of relationships between pitch discrimination and intelligence. An implication of these findings is that intelligence is a potential confounding variable in studies of the auditory perceptual abilities of various clinical populations.

scholarly journals Kinerja Mesin Pellet dalam Produksi Pakan Ayam Pedaging Fase Finisher

2020 ◽  
Vol 7 (3) ◽  
pp. 211
Author(s):  
Ichlasul Amal ◽  
Jamila Jamila ◽  
Jasmal A. Syamsu
Keyword(s):  
Category Rating ◽  
Actual Performance ◽  
Organoleptic Test ◽  
Machine Performance ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Tapioca Flour ◽  
Pellet Feed ◽  
Theoretical Performance

ABSTRAKPenelitian ini bertujuan untuk mengetahui kapasitas kinerja mesin dalam produksi pakan pellet ayam pedaging fase finisher dengan berbagai bahan perekat. Penelitian disusun menggunakan Rancangan Acak Lengkap (RAL) terdiri dari 4 perlakuan dengan 4 ulangan. Perlakuan penambahan bahan perekat yaitu P0 = tanpa menggunakan bahan perekat, P1 = penambahan molases 2%, P2 = penambahan tepung tapioka 2%, P3 = penambahan bentonit 2%. Parameter yang diukur dalam penelitian adalah kinerja teoritis dan kinerja aktual mesin pellet, ukuran diameter dan panjang pellet, serta kualitas organoleptik pellet. Hasil penelitian menunjukkan penambahan berbagai bahan perekat tidak berpengaruh nyata (P>0.05) terhadap kinerja teoritis mesin pellet, kinerja aktual mesin pellet, serta ukuran diameter dan panjang pellet. Berdasarkan uji organoleptik pellet dengan kriteria tekstur, warna, serta bau menunjukkan bahwa lebih 50% panelis memberi penilaian kategori baik pada kriteria tersebut pada pellet yang diberi bahan perekat. namun, perlakuan tanpa bahan perekat sebanyak 41,67% panelis menyatakan teskstur pellet dengan kategori jelek. Disimpulkan bahwa dengan penambahan berbagai bahan perekat tidak berpengaruh terhadap kinerja mesin pellet, dan ukuran partikel pellet, untuk uji organoleptik menunjukkan lebih 50% panelis menyatakan kategori baik pada kriteria tekstur, warna serta bau, sedangkan tanpa bahan perekat persentase tertinggi panelis menyatakan teskstur pellet dengan kategori jelek.Kata kunci: bahan perekat, kinerja mesin, kualitas fisik, organoleptik pelletABSTRACTThis research aims to determine performance capacity of the machine in production of finisher phase broiler pellet feed with various binders. The research used a completely randomized design (CRD) consist of 4 treatments with 4 replications. The treatment of adding binders are P0 = without using binders, P1 = addition 2% molasses, P2 = addition 2% tapioca flour, P3 = addition 2% bentonite. The parameters measured in the research were the theoretical performance and actual performance of the pellet machine, the diameter and length of the pellet, as well as the organoloptic quality of pellet. The results showed the addition of a variety of binders no significant effect (P>0.05) against the theoretical performance of pellet machines, the actual performance of pellet machines, as well as the size of diameter and length of pellets. Based on organoleptic test pellets with texture, color, and smell criteria showed that more than 50% of panelists gave a category rating on the criteria on pellets that were given binders. On the other hand, treatment without adhesives as much as 41,67% of panelists stated that the texture of pellets was in the bad category. It can be concluded that the addition of various binders has no effect on the performance of the machine, and the size of the pellet particles. For the organoleptic test, it showed that more than 50% of panelists stated good categories in the criteria of texture, color and smell, while without adhesive, the highest percentage of panelists stated that the pellet texture was in the bad category.Keywords: binder, machine performance, physical quality, organoleptic pellet

Performance Prediction for an Axial Flow Hydraulic Transmission

1979 ◽  
Vol 101 (4) ◽  
pp. 434-440
Author(s):  
H. E. Sheets ◽  
P. J. Corriveau ◽  
H. B. Skeels
Keyword(s):  
Performance Prediction ◽  
Axial Flow ◽  
Performance Characteristics ◽  
Actual Performance ◽  
Actual Operating ◽  
Graphic Representations ◽  
Performance Curves ◽  
Fluid Losses ◽  
Operating Points ◽  
Theoretical Performance

An axial flow hydraulic transmission is being investigated when using such a transmission in conjunction with ship propulsion driving a propeller. The investigation covers the procedure to discern the theoretical and predicted operating points for an axial flow hydraulic transmission. Theoretical performance characteristics of the primary and secondary units are determined and actual performance is predicted based on design and fluid losses. The performance curves of each component are then overlayed, and the intersection of these curves represents the transmissions’ operating point. Since actual performance curves are highly non-linear, graphic representations provide the best way to predict actual operating points.

scholarly journals Prediction the Performance Rate of Chain Type Trenching Machine

2021 ◽  
Vol 2 (2) ◽  
pp. 390-402
Author(s):  
Mohamed GHONİMY
Keyword(s):  
Mathematical Analysis ◽  
Operating Conditions ◽  
Mathematical Equation ◽  
Actual Performance ◽  
Field Efficiency ◽  
Performance Rate ◽  
Theoretical Performance ◽  
Chain Type

The mathematical analysis for estimating the performance rate "RP" of chain-type trenching machine was studied. The mathematical analysis ended with an equation for this type. This mathematical equation was checked under different operating conditions. The practical study of the performance rate showed that the deviation of the theoretical performance rate from the actual performance rate ranged from -3.4 to +2% only for the 150.7 cm and 120.7 cm trench depth respectively. The machine field efficiency ranged from 46.7 to 57% for the 150.7 cm and 120.7 cm depth respectively. It also showed an increase in machine field efficiency by decreasing the trench depth.

scholarly journals The impact of psychiatry school on attitudes towards psychiatry in medical students and junior doctors in Pakistan

BJPsych Open ◽  
2021 ◽  
Vol 7 (S1) ◽  
pp. S3-S3
Author(s):  
Raja Adnan Ahmed ◽  
Sanaa Moledina ◽  
Usama Asad
Keyword(s):  
Medical Students ◽  
Undergraduate Students ◽  
T Test ◽  
Treatment Modalities ◽  
Junior Doctors ◽  
Two Samples ◽  
The Difference ◽  
Individual Scores ◽  
The Impact ◽  
Paired T Test

AimsTo assess the impact of Psychiatry School on the attitudes towards psychiatry in Pakistani medical students (MS) and junior doctors (JD).MethodInspired by the Royal College of Psychiatrists’ ‘Choose Psychiatry’ campaign, an online event by the name of ‘Psychiatry Autumn School Pakistan’ was held on the 1st of November 2020. The event was promoted through social media and medical students and junior doctors from across Pakistan were invited to attend. Moreover, a panel of British and Pakistani psychiatrists belonging to different sub-specialties was invited to deliver talks. The attendees were provided an insight into psychiatry as a viable career option and were introduced to the training pathways, research opportunities, and the various sub-specialties present within the field.Participants were requested to complete the 'Attitudes Towards Psychiatry' (ATP-30) questionnaires before and immediately after the event. Individual scores on the questionnaire can range from 30 to 150 and a high score indicates a positive attitude. Statistical analysis was performed using a paired t-test.Result41 attendees (MS = 30, JD = 11) completed the pre-and post-school survey. The respondents were majorly female (76%) and from public sector universities (76%), with an average age of 23 years. The mean ATP score before the course was 119 (MS = 117, JD = 121) which increased by 9 points to 128 (MS = 126, JD = 131) after the event. When the two samples were compared using a paired t-test, the difference was statistically significant p < 0.005.ConclusionWe conclude that a psychiatry school can positively influence attitudes towards psychiatry in medical students and junior doctors and our findings are consistent with similar studies done in other countries.In Pakistan, unfortunately, only 2–4% of undergraduate students opt for a career in psychiatry owing to insufficient knowledge and awareness about the available treatment modalities and advancement in the field. Hence, such an intervention can greatly enhance recruitment within the profession as it makes psychiatry more accessible and visible as a career choice, generates awareness about the effectiveness and evolution of psychotherapeutic practices, and eradicates misconceptions about the field that prevail among young doctors.This was the first psychiatry school held in Pakistan and the findings of the study as well the feedback received from the participants and the speakers motivate us to continue campaigning for ‘Choose Psychiatry.’

Electron energy-loss near-edge structure in silicate minerals

1992 ◽  
Vol 50 (2) ◽  
pp. 1258-1259
Author(s):  
D W McComb ◽  
R S Payne ◽  
P L Hansen ◽  
R Brydson
Keyword(s):  
Solid State ◽  
Energy Loss ◽  
Electron Energy ◽  
State Energy ◽  
Local Environment ◽  
Edge Structure ◽  
Silicate Minerals ◽  
Two Samples ◽  
Electron Energy Loss ◽  
Careful Processing

Electron energy-loss near-edge structure (ELNES) is an effective probe of the local geometrical and electronic environment around particular atomic species in the solid state. Energy-loss spectra from several silicate minerals were mostly acquired using a VG HB501 STEM fitted with a parallel detector. Typically a collection angle of ≈8mrad was used, and an energy resolution of ≈0.5eV was achieved.Other authors have indicated that the ELNES of the Si L2,3-edge in α-quartz is dominated by the local environment of the silicon atom i.e. the SiO4 tetrahedron. On this basis, and from results on other minerals, the concept of a coordination fingerprint for certain atoms in minerals has been proposed. The concept is useful in some cases, illustrated here using results from a study of the Al2SiO5 polymorphs (Fig.l). The Al L2,3-edge of kyanite, which contains only 6-coordinate Al, is easily distinguished from andalusite (5- & 6-coordinate Al) and sillimanite (4- & 6-coordinate Al). At the Al K-edge even the latter two samples exhibit differences; with careful processing, the fingerprint for 4-, 5- and 6-coordinate aluminium may be obtained.

Mental representation of economic crisis in Italian and Swiss samples 1The authors would like to thank Maurizio Mistri for his help in the construction of items. This research was supported by a grant from the Italian Murst (ex 40%).

2001 ◽  
Vol 60 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Lucia Savadori ◽  
Eraldo Nicotra ◽  
Rino Rumiati ◽  
Roberto Tamborini
Keyword(s):  
Economic Crisis ◽  
Mental Representation ◽  
Mental Representations ◽  
Social Contexts ◽  
Raw Material ◽  
National Context ◽  
Cluster Procedure ◽  
Total N ◽  
Two Samples ◽  
Important Symptom

The content and structure of mental representation of economic crises were studied and the flexibility of the structure in different social contexts was tested. Italian and Swiss samples (Total N = 98) were compared with respect to their judgments as to how a series of concrete examples of events representing abstract indicators were relevant symptoms of economic crisis. Mental representations were derived using a cluster procedure. Results showed that the relevance of the indicators varied as a function of national context. The growth of unemployment was judged to be by far the most important symptom of an economic crisis but the Swiss sample judged bankruptcies as more symptomatic than Italians who considered inflation, raw material prices and external accounts to be more relevant. A different clustering structure was found for the two samples: the locations of unemployment and gross domestic production indicators were the main differences in representations.

Men Are Hierarchical, Women Are Egalitarian: An Implicit Gender Stereotype

2004 ◽  
Vol 63 (2) ◽  
pp. 107-111 ◽  
Author(s):  
Marianne Schmid Mast
Keyword(s):  
Empirical Evidence ◽  
Implicit Association Test ◽  
Gender Stereotype ◽  
Association Test ◽  
Implicit Association ◽  
Two Samples

The goal of the present study was to provide empirical evidence for the existence of an implicit hierarchy gender stereotype indicating that men are more readily associated with hierarchies and women are more readily associated with egalitarian structures. To measure the implicit hierarchy gender stereotype, the Implicit Association Test (IAT, Greenwald et al., 1998) was used. Two samples of undergraduates (Sample 1: 41 females, 22 males; Sample 2: 35 females, 37 males) completed a newly developed paper-based hierarchy-gender IAT. Results showed that there was an implicit hierarchy gender stereotype: the association between male and hierarchical and between female and egalitarian was stronger than the association between female and hierarchical and between male and egalitarian. Additionally, men had a more pronounced implicit hierarchy gender stereotype than women.

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