spearman rank correlation coefficient
Recently Published Documents


TOTAL DOCUMENTS

61
(FIVE YEARS 23)

H-INDEX

8
(FIVE YEARS 1)

2021 ◽  
Vol 18 (01) ◽  
pp. 1-11
Author(s):  
Sriati Sriati ◽  
Rismarini Rismarini ◽  
Yunita Yunita

One such efforts to develop rubber business by forming a farmer group. This study aims to: (1) measure the level of performance the combined farmer group and the rubber farmer group, (2) measure the behavior rubber farmer, (3) calculate the production and income, (4) analyze the relationship the combined performance of the farmer group and the rubber farmer group with the behavior of rubber farmers, (5) analyzing the relationship behavior with production and income of rubber farmers. Research in the District Banyuasin III. This research method uses survey methods. Data from research and interviews made qualitatively presented in tabulation, mathematical calculations explained descriptively and Spearman Rank correlation analysis. Respondents are members of rubber farmers. The results of the study (1) the level of performance the combined farmer group high (98.00%) and the farmer group high (93.73%), (2) the behavior of farmers high (93.26%), (3) the average production (5,008 tons/year/cultivated) and average income of (Rp.33,600,059,122,-year/arable), (4) there is a significant relationship the performance of Gapoktan and Poktan with the behavior of rubber farmers, the value of Spearman Rank correlation coefficient 0.340 and 0.374 α 0.01, (5) there is no relationship behavior and production and income of rubber farmers with Spearman Rank correlation coefficient -0.032 and -0.070.


Author(s):  
Tatiana Dorofieieva

The issue of teaching physical education in secondary schools has already received wide coverage in various scientific studies. Until recently, insufficient attention has been paid to the topic of studying the motives of physical culture and sports, including attending lessons on "Physical culture". The purpose of the article is to study the perceptions of the residents of territorial communities about the motives of schoolchildren's participation in "Physical Culture" lessons. Organization of the study. The study was conducted in 8 territorial communities of Dnipropetrovsk, Zaporizhia and Kharkiv regions. Respondents numbering 1,089 people (674 students and 415 adults) were involved. Peculiarities of adults 'and high school students' ideas about the motives of schoolchildren's participation in "Physical Culture" lessons were studied with the help of specially prepared questions. The calculation of the correlation between the representations of adults and students was performed using the Spearman rank correlation coefficient ρ. Result. Significant differences in the perceptions of the respondents regarding the motives of participation of schoolchildren of different communities in the lessons on "Physical Culture" are proved. At the same time, the calculation of the correlation between the perceptions of adults and students by the coefficient of rank correlation ρ Spearman in the Cirkunov community has an index of 0,2, which indicates a weak positive relationship between the perceptions of adults and students. Whereas in the Stepnogorsk community this indicator is 0,93, which indicates a strong positive relationship between the perceptions of adults and students.


2021 ◽  
Vol 20 (2) ◽  
pp. 63-70
Author(s):  
Dmitriy V. Savchenko ◽  
◽  
Svetlana N. Tereshchuk ◽  

This article examines the issue of gender differences in attitudes towards life in older people. The study found that older women are more positive about life than men. To process the research results, such methods of mathematical statistics as the Spearman rank correlation coefficient and the Mann– Whitney difference criterion were used. Based on the results of the work carried out, recommendations were formulated for specialists working with the elderly.


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Lige Xiao ◽  
Guanteng Yang ◽  
Hongqi Zhang ◽  
Jinyang Liu ◽  
Chaofeng Guo ◽  
...  

Objective. Adolescent idiopathic scoliosis (AIS) is a relatively common spinal rotation deformity, and the pathogenesis of AIS is accompanied by metabolic dysfunction and changes in biochemical factors. In this study, plasma metabolite changes in AIS patients were analyzed based on nontargeted metabolomics to provide new insights for clarifying functional metabolic abnormalities in AIS patients. Methods. Clinical indexes and blood samples were collected from 12 healthy subjects and 16 AIS patients. Metabolomics was used to analyze the changes in metabolites in plasma samples. The correlation between plasma metabolites and clinical indexes was analyzed by the Spearman rank correlation coefficient. Results. Analysis of clinical data showed that the body weight, body mass index (BMI), and bone mineral density (BMD) index of the AIS group significantly decreased, while the blood phosphorus and Cobb angles increased significantly. Metabolomic analysis showed significant changes in 72 differential metabolites in the plasma of the AIS group, mainly including organooxygen compounds, carboxylic acids and derivatives, fatty acyls, steroids and steroid derivatives, and keto acids and derivatives. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway showed that arginine biosynthesis, D-glutamine and D-glutamate metabolism, alanine, aspartate and glutamate metabolism, and citrate cycle (TCA cycle) were significantly enriched in the AIS and healthy groups. Spearman rank correlation coefficient analysis showed that the plasma metabolites C00026 (oxoglutarate), C00062 (L-arginine, arginine), C01042 (N-acetylaspartate), and C00158 (citrate) were significantly correlated with clinical indexes in AIS patients. In the healthy group, the plasma metabolites C00122 (fumarate), C00025 (glutamate and L-glutamic acid) and C00149 (malate, L-malic acid) were significantly correlated with clinical indexes, while C00624 (N-acetylglutamate) was not significantly correlated with the clinical indexes. Conclusion. The occurrence of AIS led to changes in clinical indexes and plasma metabolites. Plasma biomarkers and functional metabolic pathways were correlated with clinical indexes, which might provide new insights for the diagnosis and treatment of AIS.


2021 ◽  
Vol 13 (2) ◽  
pp. 16-44
Author(s):  
Limin Su ◽  
Huimin Li

A project procurement method (PPM) defines the roles and responsibilities of the participates involved in the construction project. Selecting a suitable PPM is one of the critical issues to achieve the success of a construction project. The selection of PPM is a typical multi-criteria decision-making problem under uncertainty. Moreover, interval-valued intuitionistic fuzzy set (IVIFS) is a useful tool for depicting uncertainty of the multi-criteria decision-making (MCDM) problems. In this paper, the authors consider the PPM selection under IVIFS circumstance. Firstly, they introduce the concept of Spearman rank correlation coefficient (SRCC) between two IVIFSs and then calculate the SRCC between the ideal alternative and each alternative. The ideal option of PPM is determined according to the computed value of SRCC. Overall, the proposed method can avoid the calculation of the criteria weights, and the selection process is simple and straightforward. Finally, a real-world infrastructure project PPM selection has been illustrated the applicability and effectiveness of this methodology.


2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Peter Diedrich Jensen ◽  
Asbjørn Haaning Nielsen ◽  
Carsten Wiberg Simonsen ◽  
Ulrik Thorngren Baandrup ◽  
Svend Eggert Jensen ◽  
...  

Abstract Background Non-invasive estimation of the cardiac iron concentration (CIC) by T2* cardiovascular magnetic resonance (CMR) has been validated repeatedly and is in widespread clinical use. However, calibration data are limited, and mostly from post-mortem studies. In the present study, we performed an in vivo calibration in a dextran-iron loaded minipig model. Methods R2* (= 1/T2*) was assessed in vivo by 1.5 T CMR in the cardiac septum. Chemical CIC was assessed by inductively coupled plasma-optical emission spectroscopy in endomyocardial catheter biopsies (EMBs) from cardiac septum taken during follow up of 11 minipigs on dextran-iron loading, and also in full-wall biopsies from cardiac septum, taken post-mortem in another 16  minipigs, after completed iron loading. Results A strong correlation could be demonstrated between chemical CIC in 55 EMBs and parallel cardiac T2* (Spearman rank correlation coefficient 0.72, P < 0.001). Regression analysis led to [CIC] = (R2* − 17.16)/41.12 for the calibration equation with CIC in mg/g dry weight and R2* in Hz. An even stronger correlation was found, when chemical CIC was measured by full-wall biopsies from cardiac septum, taken immediately after euthanasia, in connection with the last CMR session after finished iron loading (Spearman rank correlation coefficient 0.95 (P < 0.001). Regression analysis led to the calibration equation [CIC] = (R2* − 17.2)/31.8. Conclusions Calibration of cardiac T2* by EMBs is possible in the minipig model but is less accurate than by full-wall biopsies. Likely explanations are sampling error, variable content of non-iron containing tissue and smaller biopsies, when using catheter biopsies. The results further validate the CMR T2* technique for estimation of cardiac iron in conditions with iron overload and add to the limited calibration data published earlier.


Author(s):  
Dike Mercy O ◽  
Ozuru Henry N

This study empirically examined the relationship between digital interactions on students purchase decision. Survey research design was employed in the study. The population of interest was 9,743 students, with a sample size of 370 students. Spearman Rank Correlation Coefficient were used for analysis with the aid of Statistics Package for Social Sciences (SPSS) version 20. The study finds that digital interaction strategies significantly influences students purchase decision in varying degrees. It was therefore recommended that e-tailing industry should research into the digital interaction needs of the students and take advantage of its use in order to effect their purchase decision positively. KEYWORDS: Digital Interaction, E-tailing Industry, Purchase Decision


2021 ◽  
Vol 21 (1) ◽  
pp. 1-7
Author(s):  
M Bakti Samsu Adi ◽  
Dian Susanti ◽  
Nur Rahmawati Wijaya

Caricature-plant cultivation is often damaged due to the attack of Doleschallia bisaltide larvae. High reproduction ability of D. bisaltide is a serious problem that need to be managed, therefore it will not inflict a financial losses. This study was aimed to determine the fluctuation of D. bisaltide larval population in the caricature-plant plantation in Kalisoro, Tawangmangu. The observations were carried out with a survey method on five observation plots for seven months from March to September 2018. The data were analyzed by descriptive statistics and the Spearman rank correlation coefficient test. The results showed that the population structure was changed during the observations with the highest larval population in May. The results of Spearman rank correlation coefficient test showed significant and positive correlation between third, fourth, and fifth instars larvae with the rainfall. The control of D. bisaltide can not only depend on the presence of natural enemies, therefore control interventions were needed especially at a suitable time and environment whne the population increased.


2021 ◽  
Author(s):  
YING XIN ◽  
Richard Tyler ◽  
Zi-ming Yao ◽  
Na Zhou ◽  
Li-yuan Tao ◽  
...  

Abstract OBJECTIVE: The aim of the study was to evaluate the Chinese version of Tinnitus Primary Function Questionnaire (TPFQ).DESIGN: Tinnitus patients were administered the TPFQ, the Tinnitus Handi­cap Inventory (THI), the Beck Anxiety Inventory (BAI), the Beck Depression Inventory (BDI), and the Pittsburgh Sleep Quality Index (PSQI). Additionally, the magnitude estimate of tinnitus loudness, pure tone audiogram and tinnitus matching were obtained. The factor structure was measured by Kaiser-Meyer-Olkin. The internal consistency was examined using Cron­bach coefficient alpha. The relationships between the TPFQ scores and other measurements were compared with Spearman rank correlation coefficient.STUDY SAMPLE:116 patients whose tinnitus lasting longer than 3 months were included in this study.RESULTS: The Cronbach’s α of the 20-item version TPFQ was 0.94, and the 12-item version TPFQ was 0.92. Both the 20-item and 12-item version TPFQ were significantly correlated with magnitude estimation of tinnitus loudness, THI, PSQI, BDI and BAI. The average pure tone hearing thresholds were significantly correlated with the hearing subscale. CONCLUSIONS: The 20-item and 12-item versions of Chinese TPFQ are a reliable and valid measures of tinnitus. The TPFQ can be used in the assessment and management of tinnitus among the Chinese speaking population.


2020 ◽  
Vol 21 (1) ◽  
pp. 1-7
Author(s):  
M Bakti Samsu Adi ◽  
Dian Susanti ◽  
Nur Rahmawati Wijaya

Fluctuation of Doleschallia bisaltide larvae (Lepidoptera: Nymphalidae) on caricature-plant (Graptophyllum pictum).Caricature-plant cultivation is often damaged due to the attack of Doleschallia bisaltide larvae. High reproduction ability ofD. bisaltide is a serious problem that need to be managed, therefore it will not inflict a financial losses. This study was aimedto determine the fluctuation of D. bisaltide larval population in the caricature-plant plantation in Kalisoro, Tawangmangu.The observations were carried out with a survey method on five observation plots for seven months from March to September2018. The data were analyzed by descriptive statistics and the Spearman rank correlation coefficient test. The results showedthat the population structure was changed during the observations with the highest larval population in May. The results ofSpearman rank correlation coefficient test showed significant and positive correlation between third, fourth, and fifth instarslarvae with the rainfall. The control of D. bisaltide can not only depend on the presence of natural enemies, therefore controlinterventions were needed especially at a suitable time and environment whne the population increased.


Sign in / Sign up

Export Citation Format

Share Document