scholarly journals percentage standard deviation, sr (%), σr (%)

2008 ◽  
Keyword(s):  
Standard Deviation ◽  
Percentage Standard Deviation

scholarly journals Organizational Development Towards Excellent Management

2018 ◽  
pp. 254-257
Keyword(s):  
Regression Analysis ◽  
Standard Deviation ◽  
Organizational Development ◽  
Assessment Model ◽  
Survey Method ◽  
Significant Difference ◽  
Before And After ◽  
Level Of Knowledge ◽  
And Behavior ◽  
Percentage Standard Deviation

This study will use the Kirkpatrick Assessment Model to assess the School Excellence program through Organization Development (PrOD). This model involves evaluation of reactions, learning (knowledge, skills and attitude), behavior and outcomes, but this study only assesses knowledge and behavior . This study uses survey method by involving 120 respondents of the study chosen by group sampling. The instrument is a questionnaire that has Cronbach Alpha value between 0.930-0.984. The data were analyzed using mean score, percentage, standard deviation and regression. Analysis findings show that there is a significant difference between the level of knowledge and behavior before and after the PrOD. Overall, this study recommends PrOD to be continued, but it is necessary to improve in the formulation of PrOD syllabus so that school leaders can improve the behavior change in meaningful and meaningful implementation of the PrOD.

scholarly journals Determination of the Iodine Content of Some Commonly Consumed Foods in Zaria Metropolis, Nigeria, Using PCNAA and Sandell-Kolthoff Reaction

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
T. Muhammad ◽  
A. Uzairu ◽  
M. S. Sallau ◽  
M. O. A. Oladipo
Keyword(s):  
Neutron Activation Analysis ◽  
Standard Deviation ◽  
Test Score ◽  
Research Reactor ◽  
Iodine Content ◽  
Food Samples ◽  
Average Percentage ◽  
Average Percentage Deviation ◽  
Percentage Standard Deviation

The Nigerian Research Reactor-1 was employed in the analysis of iodine in local food samples at an operating flux of 5.0×1011 ncm−2 s−1. Preconcentration neutron activation analysis (PCNAA) was compared against the most common spectroscopic (Sandell-Kolthoff reaction) technique, giving a concentration range of 0.295 to 2.960 mg/Kg and 0.264 to 2.725 mg/Kg, respectively, with an average percentage deviation of 11.34% and a positive correlation between the methods at 0.89. PCNAA and Sandell-Kolthoff spectroscopy of NIST 1548a reported values of 0.759±0.06 mg/Kg and 0.751±0.05 with Student’s t-test score of 1 and 0.95 and percentage standard deviation of 0 and 1.12%, respectively.

A statistical examination of the catches, numbers, and biomass taken by three commonly used plankton nets

1965 ◽  
Vol 16 (3) ◽  
pp. 293 ◽  
Author(s):  
H Barnes ◽  
DJ Tranter
Keyword(s):  
Standard Deviation ◽  
Indian Ocean ◽  
Chemical Analysis ◽  
The Other ◽  
Single Observation ◽  
Large Bulk ◽  
The Indian Ocean ◽  
Percentage Standard Deviation

A comparison has been made between the Indian Ocean standard net (IOSN), the tropical Juday net (TJN), and the Clarke-Bumpus sampler (CBS). Various components of the zooplankton have been counted and the results submitted to analyses of variance. The variability of the catches is greatest with the TJN, the percentage standard deviation of a single observation rangingfrom 73 to 135 %; the valuesfor the IOSN and the CBS are similar toeach other: 42-51 %. The greater variability of the TJNis ascribed to its smaller mesh with consequent clogging, and arises from variability in the volume filtered and from the difficulty of washing down such a large and fine net efficiently. There is no evidence that the larger zooplankton avoid the smaller CBS any more successfully than they avoid the two large nets; as expected, the smaller zooplankton organisms escape more readily through the IOSN with its coarser meshes than through the other two nets. The catches for the IOSN and the CBS agree very well when expressed per volume of water filtered. The main advantage of the larger nets--as regards the organisms considered here-is in the greater volume of water filtered; this would be of importance if a large bulk of material were required for, say, chemical analysis or if a search were being made for rare organisms.

Nucleic Acid Molecules Prepared by Monolayer Techniques

1972 ◽  
Vol 30 ◽  
pp. 178-179
Author(s):  
Dimitrij Lang
Keyword(s):  
Electron Microscopy ◽  
Standard Deviation ◽  
Nucleic Acid ◽  
Cytochrome C ◽  
Nucleic Acids ◽  
Contour Length ◽  
Sample Standard Deviation ◽  
Molecular Weights ◽  
Length Measurements ◽  
Protein Monolayer

The success of the protein monolayer technique for electron microscopy of individual DNA molecules is based on the prevention of aggregation and orientation of the molecules during drying on specimen grids. DNA adsorbs first to a surface-denatured, insoluble cytochrome c monolayer which is then transferred to grids, without major distortion, by touching. Fig. 1 shows three basic procedures which, modified or not, permit the study of various important properties of nucleic acids, either in concert with other methods or exclusively:1) Molecular weights relative to DNA standards as well as number distributions of molecular weights can be obtained from contour length measurements with a sample standard deviation between 1 and 4%.

Reliability of the Minimum Masking Level as Outcome Variable in Tinnitus Clinical Research

2020 ◽  
Vol 29 (3) ◽  
pp. 429-435
Author(s):  
Patricia C. Mancini ◽  
Richard S. Tyler ◽  
Hyung Jin Jun ◽  
Tang-Chuan Wang ◽  
Helena Ji ◽  
...  
Keyword(s):  
Standard Deviation ◽  
High Frequency ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Outcome Variable ◽  
Reliable Estimate ◽  
Moderate Correlation ◽  
Trained Subjects ◽  
The Relationship ◽  
Minimum Intensity

Purpose The minimum masking level (MML) is the minimum intensity of a stimulus required to just totally mask the tinnitus. Treatments aimed at reducing the tinnitus itself should attempt to measure the magnitude of the tinnitus. The objective of this study was to evaluate the reliability of the MML. Method Sample consisted of 59 tinnitus patients who reported stable tinnitus. We obtained MML measures on two visits, separated by about 2–3 weeks. We used two noise types: speech-shaped noise and high-frequency emphasis noise. We also investigated the relationship between the MML and tinnitus loudness estimates and the Tinnitus Handicap Questionnaire (THQ). Results There were differences across the different noise types. The within-session standard deviation averaged across subjects varied between 1.3 and 1.8 dB. Across the two sessions, the Pearson correlation coefficients, range was r = .84. There was a weak relationship between the dB SL MML and loudness, and between the MML and the THQ. A moderate correlation ( r = .44) was found between the THQ and loudness estimates. Conclusions We conclude that the dB SL MML can be a reliable estimate of tinnitus magnitude, with expected standard deviations in trained subjects of about 1.5 dB. It appears that the dB SL MML and loudness estimates are not closely related.

Bedingungen für den Erfolg übergewichtiger und adipöser Kinder in einem ambulanten Programm zur Gewichtsreduktion durch Veränderungen des Lebensstils

2010 ◽  
Vol 38 (5) ◽  
pp. 351-360 ◽  
Author(s):  
Wilfried Pott ◽  
Georg Fröhlich ◽  
Özgür Albayrak ◽  
Johannes Hebebrand ◽  
Ursula Pauli-Pott
Keyword(s):  
Body Mass Index ◽  
Standard Deviation ◽  
Body Mass ◽  
Standard Deviation Score ◽  
Psychische Belastung ◽  
Deviation Score ◽  
Höheres Alter

Fragestellung: Es wurde der Frage nachgegangen, ob sich erfolgreiche Teilnehmer eines ambulanten familienzentrierten Gewichtskontrollprogramms durch spezifische familiäre und psychologische Charakteristiken auszeichnen. Einbezogen wurden die psychosoziale Risikobelastung der Familie, Depressivität und Bindungsstil der Hauptbezugsperson, der Body mass index (BMI) und der BMI-Standardabweichungswert («Standard deviation score», SDS) des teilnehmenden Kindes und der Familienmitglieder sowie die individuelle psychische Belastung des teilnehmenden Kindes. Methodik: Die Daten wurden per Interview und Fragebogen vor dem Behandlungsbeginn erhoben. Von 136 in das Programm aufgenommenen übergewichtigen und adipösen Kindern zwischen 7 und 15 Jahren beendeten 116 das 12-monatige Interventionsprogramm. Von diesen zeigten 100 (85,3 %) eine Reduktion des BMI-SDS und 79 (68.1 %) eine mehr als 5 %ige Reduktion des BMI-SDS. Diese «erfolgreichen» Kinder wurden mit 56 «nicht erfolgreichen» (Abbrecher und Kinder mit einer 5 %igen oder geringeren Reduktion des BMI-SDS) verglichen. Ergebnisse: Nicht erfolgreiche Kinder unterschieden sich von den erfolgreichen durch ein höheres Alter, eine höhere psychosoziale Risikobelastung, Depressivität und einen vermeidenden Bindungsstil der Mutter sowie durch das Vorhandensein adipöser Geschwister. In einer logistischen Regressionsanalyse zeigten sich mütterliche Depressivität und das Vorhandensein adipöser Geschwister als beste und voneinander unabhängige Prädiktoren. Schlussfolgerungen: Um die spezifischen Bedürfnisse der Familien zu erfüllen und einen Misserfolg zu verhindern, sollten zusätzliche Programmbausteine zur spezifischen Unterstützung von Jugendlichen mit adipösen Geschwistern und Müttern mit Depressionen und vermeidenden Bindungsstil entwickelt werden. Die Wirksamkeit dieser Module muss dann in weiteren Studien überprüft werden.

At Least One Standard Deviation Above the Mean

1969 ◽  
Vol 14 (9) ◽  
pp. 470-471
Author(s):  
M. DAVID MERRILL
Keyword(s):  
Standard Deviation ◽  
The Mean
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