Statistical Modeling for Ceramic Analysis

2016 ◽  
pp. 57-72
Author(s):  
Gulsebnem Bishop
Keyword(s):  
Complex Data ◽  
Sampling Strategies ◽  
Data Sampling ◽  
Ceramic Analysis ◽  
Chi Square ◽  
Statistical Population ◽  
Archaeological Data ◽  
Principle Components Analysis ◽  
Chi Square Test ◽  
Components Analysis

Statistics can be used to describe, model, and predict archaeological data, provided that the analyst has an understanding of the strengths and limitations of their data type and has a well-defined statistical population. This chapter discusses the major types of archaeological data, sampling strategies, and statistics appropriate for both describing and predicting outcomes for simple and complex ceramic datasets. Description and modeling of complex data can be done with many tools ranging from simple charts and histograms to more complicated methods, such as T-Test, Chi-Square Test, Multi-Response Permutation Procedure (MRPP), and Kernel Density Estimation (KDE), as well as Principle Components Analysis (PCA).

The Relationship between Innovation Orientation and Strategic Typology in Business Firms

2016 ◽  
Vol 6 (2) ◽  
pp. 1-20 ◽  
Author(s):  
Parviz Kafchehi ◽  
Kaveh Hasani ◽  
Arman Gholami
Keyword(s):  
Significant Relationship ◽  
Goodness Of Fit ◽  
Goodness Of Fit Test ◽  
Chi Square ◽  
Test Analysis ◽  
Statistical Population ◽  
Chi Square Test ◽  
The Mean ◽  
Executive Managers ◽  
The Relationship

The aim of this study is to investigate the relationship between innovation orientation and strategic typology in firms such a way that a classification on the organization's orientation toward innovation and strategy could be obtained. The statistical population includes high executive managers of firms who have been acting in 4 industries of banking (B), food (F), insurance (I), and pharmacy (P), and have been the five pioneering firms in these industries. To test the hypothesis, the mean test analysis, the Goodness- of- Fit- Test, Chi- square test, and cross- tables were used and tested by SPSS18 software. The results show that there is a significant relationship between the firm's orientation toward innovation and competitive strategy; the more firm's orientation toward innovation, the firms uses more Prospector strategy, and their strategies have a more aggressive state. This paper provides a richer understanding of innovation orientation and strategic typology formation for similar firms.

scholarly journals A Study of the Level of Satisfaction with the Quality of Educational Services among Students of Nursing-Midwifery in Islamic Azad University of Dezful Based on the Model of European Foundation of Quality Management

2014 ◽  
Vol 44 ◽  
pp. 86-92
Author(s):  
Hagar Roshanaei ◽  
Faranak Omidian ◽  
Ali Akbar Nazari
Keyword(s):  
Nursing Faculty ◽  
Educational Services ◽  
Chi Square ◽  
Statistical Population ◽  
Efqm Model ◽  
Level Of Satisfaction ◽  
Chi Square Test ◽  
European Foundation ◽  
Rank 2

This study aimed to examine level of satisfaction with the quality of educational services among students of nursing-midwifery in Islamic Azad University of Dezful based on EFQM model. Statistical population of this survey consisted of all university students who had spent at least one semester in midwifery-nursing faculty of Islamic Azad university of Dezful. 270 students were selected through random sampling method. A questionnaire was developed by the researcher of current study based on customer-centered orientation of EFQM organizational excellence model. Data was analyzed through descriptive statistics and Chi-Square Test. The results showed that level of satisfaction at the educational services of nursing-midwifery and the affiliated hospitals was low (p = 0.99). Based on Freidman test, level of satisfaction at the accountability of staff was the most important factor, and it had the highest priority (mean rank 2/77). On the other hand, level of satisfaction at post-educational services was the least important, and it had the lowest priority (mean rank 2/30).

scholarly journals Review of the Statistical Methods Used in Original Articles Published in Iranian Journal of Public Health from 2015-2019: A Review Article

2021 ◽  
Author(s):  
Sajjad Bahariniya ◽  
Farzan Madadizadeh
Keyword(s):  
Public Health ◽  
Sample Size ◽  
Statistical Methods ◽  
Study Design ◽  
Statistical Tests ◽  
Response Analysis ◽  
Chi Square ◽  
Statistical Population ◽  
Population Type ◽  
Chi Square Test

Background: Nowadays, statistical methods are used frequently in research articles. This review study aimed to determine the statistical methods used in original articles published in Iranian journal of public health (IJPH). Methods: Original articles in the period 2015 to 2019 from volumes 44 to 48 and numbers 1 to 12 were reviewed by a 3-member committee consisting of a statistician and two health researchers. The statistical methods, sample size, study design and population, type of used software were investigated. Multiple response analysis (MRA), Kruskal–Wallis test and Spearman correlation coefficient were used to data analysis. All analyzes were performed in SPSS21 software. Significant level was set at 0.05. Results: Statistical population in most of the articles were related to human samples at the field level (36% and 297 articles). 66.6% (549 articles) had the sample size less than 500 cases. Study design in most of them were analytical observational 56.2% (464 cases). Acceptance period was 115.5 ± 52.27 days. All the mentioned variables had no significant relationship with the acceptance period (P>0.05). Both among the total tests and the articles, the highest rate of use of statistical methods was related to descriptive statistical method (34.4%, 75.8% and 532 articles), also, the highest use of tests was related to chi square test  and t-test( (29%(450 articles)). Conclusion: Study design in most of the articles were analytical, to increase thematic diversity, accepting different articles seems necessary. The statistical tests, which used in most articles, were simple, so accepting articles with advanced statistical methods is recommended.

scholarly journals Identification and explanation of the factors related to knowledge management in Supreme Audit Court

2019 ◽  
Author(s):  
Sorush Niknamian
Keyword(s):  
Knowledge Management ◽  
Pearson Correlation ◽  
Survey Method ◽  
Chi Square ◽  
Statistical Population ◽  
Leadership Culture ◽  
Descriptive Research ◽  
Chi Square Test ◽  
Main Components ◽  
Relationship Of

The purpose of this study is to identify and explain the factors related to knowledge management. The present research is applied in the field of applied research. It is a descriptive research and survey method based on a questionnaire tool. In this research, firstly, through the study of previous studies and studies, a relatively comprehensive understanding of the literature in this field was obtained and, accordingly, a preliminary list of knowledge management factors as well as its components and indicators were provided. Then these factors were completed and finalized using content analysis and Delphi methodology. The statistical population of this research, in the Delphic Phase, 30 experts and at the stage of factor analysis, 199 managers Court of Auditors in different categories. The findings of the main components analysis using one-sample t-test and Chi-square test showed that the factors related to knowledge management include leadership, culture, technology, education, human resources, activities and processes, and infrastructure. After confirming the relationship of each of these factors with knowledge management, using Pearson correlation coefficient, we have provided practical suggestions for improving and improving knowledge management.

scholarly journals The Comparison of the Ownership Structure at Different Level of the Financial Collapse in Listed Firms of Tehran Stock Exchange

2012 ◽  
Vol 4 (1) ◽  
pp. 49-55
Author(s):  
Saeid Jabbarzadeh Kangarlouei ◽  
Morteza Motavassel .
Keyword(s):  
Ownership Structure ◽  
Stock Exchange ◽  
Corporate Ownership ◽  
Business Law ◽  
Chi Square ◽  
Statistical Population ◽  
Listed Firms ◽  
Chi Square Test ◽  
Individual Ownership ◽  
Different Levels

The main objective of this study is to compare ownership structure of different levels of collapse in listed companies of Tehran Stock Exchange (TSE). Study variables are the ownership structure that includes governmental ownership, private ownership (corporate ownership and individual ownership) and the different levels of collapse including latency stage, the stage of cash deficits and commercial and financial insolvency and complete collapse. Altman model (Z´- Score) is used to predict the collapse of firm and Chi-Square test is used to test the research hypothesis. The study is the applied research and statistical population of study includes 96 collapse firms that are active in the TSE (subject to Business Law Article 141). Given the availability of financial information of distressed companies in 7 years between 2004-2010 years, a sample of 81 members was selected. The results show that the ownership structure of collapsed firms is independent from their different levels of collapse.

scholarly journals Nursing education on collaborative discharge planning and motivating patients to control for further care and management

2019 ◽  
Vol 2 (2) ◽  
pp. 52-58
Author(s):  
Dewi Kusumaningsih ◽  
Muhammad Agustianda
Keyword(s):  
Nursing Education ◽  
Nurse Educators ◽  
Discharge Planning ◽  
Nurse Educator ◽  
P Value ◽  
Data Sampling ◽  
Chi Square ◽  
Cross Sectional ◽  
Chi Square Test

Background: Nurse as a health worker had a role as educators. The role of nurse educators could be seen from 10 inpatients resulted there were 4 inpatients (40%) stated that nurses did their roles accurately and 6 patients (60%) stated that there were nurses didn’t their roles properly. This condition could cause an increasing amount of patients who uncontrolled  at Dr. A. Dadi Tjokrodipo Hospital  Bandar Lampung.Purpose: To know there was a correlation of nursing education on collaborative discharge planning and motivating patients to control for further care and managementMethods: This research was quantitative method. The design of this study was an analytical survey with a cross-sectional. The samples used in this study were 136 people. Collecting data sampling used a consecutive sampling. The statistical test used a chi-square test.Results: The roles of nurse educator which had not good categories were 73 respondents (53.7%) and the roles of nurse educator which had good category were 63 respondents (46.3%). Low control motivations were 69 respondents (50.7%) and high control motivations were 67 respondents (49.3%). The results of data analysis using the chi-square test showed p-value = 0.001.Conclusion: There was a correlation of the roles of the nurse educator in discharge planning with motivation of inpatients for control. It was expected that the results of this study could be used as material for consideration and input for the hospital to be able to know the importance of the role of nurse educators in discharge planning. 

scholarly journals Identification and explanation of the factors related to knowledge management in Supreme Audit Court

2019 ◽  
Author(s):  
Sorush Niknamian
Keyword(s):  
Knowledge Management ◽  
Pearson Correlation ◽  
Survey Method ◽  
Chi Square ◽  
Statistical Population ◽  
Leadership Culture ◽  
Descriptive Research ◽  
Chi Square Test ◽  
Main Components ◽  
Relationship Of

The purpose of this study is to identify and explain the factors related to knowledge management. The present research is applied in the field of applied research. It is a descriptive research and survey method based on a questionnaire tool. In this research, firstly, through the study of previous studies and studies, a relatively comprehensive understanding of the literature in this field was obtained and, accordingly, a preliminary list of knowledge management factors as well as its components and indicators were provided. Then these factors were completed and finalized using content analysis and Delphi methodology. The statistical population of this research, in the Delphic Phase, 30 experts and at the stage of factor analysis, 199 managers Court of Auditors in different categories. The findings of the main components analysis using one-sample t-test and Chi-square test showed that the factors related to knowledge management include leadership, culture, technology, education, human resources, activities and processes, and infrastructure. After confirming the relationship of each of these factors with knowledge management, using Pearson correlation coefficient, we have provided practical suggestions for improving and improving knowledge management.

scholarly journals Prevalence and Risk Factors of Bacterial Meningitis after Craniotomy in Shahid Bahonar Hospital of Kerman in 2016

2019 ◽  
pp. 1-6
Author(s):  
Mehdi Ahmadinejad ◽  
Yalda Bilesteh ◽  
Maryam Ahmadipour
Keyword(s):  
Risk Factors ◽  
Bacterial Meningitis ◽  
Elective Surgery ◽  
Underlying Disease ◽  
Cerebrospinal Fluid Leakage ◽  
Chi Square ◽  
Cross Sectional ◽  
Statistical Population ◽  
Exact Test ◽  
Chi Square Test

Objective: Postoperative infections of the central nervous system are common complications of neurological surgeries, which can lead to bad consequences for the patient and increase the cost of treatment. Incorrect diagnosis or treatment of meningitis after craniotomy can lead to irrecoverable disabilities. Therefore, this study tends to investigate the prevalence and risk factors of bacterial meningitis after craniotomy in Shahid Bahonar Hospital of Kerman. Methods: This was a cross-sectional, analytical, descriptive study. The statistical population was 146 patients who underwent craniotomy in Shahid Bahonar Hospital of Kerman during 2016. To find out the relationship between each risk factor and meningitis, multivariate logistic regression was used. Data was analysed by SPSS software version 16. For comparison of percentages between two groups, Chi-square test or Fisher's exact test was used. In order to compare quantitative variables between the two groups, independent t-test was used; if the data was nonparametric, U-Mann-Whitney test was used. Results: Of 77 patients, who underwent elective surgery, 5 cases (6.5%) developed bacterial meningitis; of patents that underwent emergency surgery, 8 cases (11.6%) developed bacterial meningitis. Two of 43 female patients (4.7%) and 11 of 103 male patients (10.7%) developed bacterial meningitis of patients with underlying disease, 4 (5.6%) patients developed bacterial meningitis and 9 (12%) of other patients developed bacterial meningitis. There were 4 cases of cerebrospinal fluid leakage. Of 146 patients, 13 cases (8.9%) developed bacterial meningitis, of which 5 had positive bacterial CSF culture; one case of Acinetobacter baumannii, one case of Staphylococcus Epidermidis ,one case of Streptococcus pyogenes, one case of Staphylococcus aureus and one case of Pseudomonas aeruginosa  were reported. Conclusion: It can be concluded that prevalence of bacterial meningitis increases with the increase in the number of received blood units, the presence of associated infection, the increase in duration of stay in hospital and ICU, the increase in duration of mechanical ventilation and repeated craniotomy and lower GCS.

scholarly journals Examining the Amount of Unnecessary Knee MRI Prescription in the MRI Center of Bushehr University of Medical Sciences in 2018

2020 ◽  
Author(s):  
Hedayat Salari ◽  
Habib Omranikhoo ◽  
Azam Amini ◽  
Mosayeb Amiri ◽  
Saeed Bayyenat ◽  
...  
Keyword(s):  
P Value ◽  
Medical Sciences ◽  
Chi Square ◽  
Cross Sectional ◽  
Statistical Population ◽  
Knee Mri ◽  
Chi Square Test ◽  
Diagnostic Technology ◽  
Magnetic Resonance Imaging Mri ◽  
Collection Form

Background: Many prevalent disorders were observed in and around the knee joint. Magnetic resonance imaging (MRI) was a modern and costly diagnostic technology that was progressively applied worldwide. This study was conducted in the Bushehr educational hospitals in 2018 with the purpose of determining the necessity of knee MRI prescriptions. Methods: This paper was a kind of cross-sectional descriptive-analytical study. The statistical population of the study was all patients who were prescribed knee MRI due to the appearance of knee problems and referred to the MRI Center of Bushehr University of Medical Sciences in 2018. The sampling method was convenient sampling. The sample in this study included 274 patients. The indications and data collection form of Vojdani et al.'s study were used to specify the necessity of the mentioned prescriptions. In this study, SPSS 22 software was applied to analyze data. Also, the Chi-Square test was used to for analyzing the data. Results: Among the total studied population in this study, MRI prescription was evaluated inappropriately for approximately 24 % of patients. In this study, the appropriateness of the prescriptions had a significant relationship with age, job, education level, physician prescribing, and requesting MRI (P-value < 0.05). Conclusion: It could be deduced that about a quarter of MRI was not appropriate to clinical prescription. Regarding the high cost of hospital and the necessity of their reduction, induced demand would be prevented by using valid indications. Therefore, reducing unnecessary prescriptions yielded to fewer costs of the health system and patients.

Hubungan Antara Menyusui Dengan Involusi Uterus Pada Ibu Nifas Fisiologis Di RSIA Aura Syifa Kabupaten Kediri

1970 ◽  
Vol 5 (2) ◽  
pp. 64
Author(s):  
Eny Sendra ◽  
Dewi Indriani
Keyword(s):  
Breast Feeding ◽  
Sampling Technique ◽  
Chi Square ◽  
Cross Sectional ◽  
Fisher Test ◽  
Key Word ◽  
Chi Square Test ◽  
The Moment

Breast feeding is giving milk to be drunk to the baby from the breast. Uterus involution is a process how the uterus return to the condition back, before pregnanting after bearing. At the moment of suckling, happens a stimulus and brings the hormones out, such as oksitosin uses not only to stimulate some muscles constraction but also to stimulate the uterus, so that the process of uterus involution happens foster. According to the explanations above, the research aimed to know about the correlation between breast feeding and uterus involution. This research’s design was, cross sectional by the population of all childbirth mothers approximately 50 persons / month. By using accidental sampling technique we got 21 sample respondents. The place of research in RSIA Aura Syifa in Kediri Regency on 16th until 22nd of June 2009. From this research’s result, we got 14 persons (66,67%) with normal uterus involution, suckled in a good way, one person (4,67%) with normal uterus involution, suckled in a wrong way, 2 persons (9,52%) with abnormal uterus involution, suckled in a good way and 4 persons (19,05%) with abnormal uterus involution, suckled in a wrong way. Statistic test which used chi-square test, counted the probability frequency in advance, from that we got 3 columns with the score, less than 5, so that chi-square can not be continued and by doing exact fisher test, the score was 0,001. Because P with the grade mistake 0,05 smaller, so the conclusion was “Ho” is rejected, it meant “there was correlation between suckling and uterus involution”. Key Word : Breast feeding, uterus involution

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