Spearman Rank Correlation

Zar, Jerrold H.

doi:10.1002/0470011815.b2a15150

Cited by 308 publications

(152 citation statements)

References 16 publications

Supporting

Mentioning

124

Contrasting

Unclassified

Order By: Relevance

“…The coefficient ρs (Rho) of Spearman was applied because it is a robust and efficient estimator in case of ranks (Croux & Dehon, 2010;Zar, J. H., 2005), and it is one of the coefficients most commonly used to measure the association between two ranks of attributes (qualitative variables) and to know the direction of the association (Masson et al, 2003;Matthys et al, 2004). The measure and the direction of the association between ranks of attributes of couples of small fruits may provide information about similarities between fruits or dissimilarities, according to consumers, and therefore provide information about similarities of preferences for small fruits.…”

Section: Statistical Data Analysismentioning

confidence: 99%

“…The correlation of ranks introduced by Spearman is one of the oldest and best known of nonparametric procedures for studying ranks of preferences (in qualitative studies). The rank correlation coefficient, ρs (Rho), is generally expressed as ρs = 1 − 6 (Σ d2 ⁄ (n3 − n)), where n is the number of measurements in each of the two variates in the correlation, Σd2 = Σni=1 d2i, and di is the ranked difference between the ith measurements for the two variates (Zar, J. H., 2005).…”

Section: Statistical Data Analysismentioning

confidence: 99%

See 1 more Smart Citation

Quality Factors Influencing Consumer Demand for Small Fruit by Focus Group and Sensory Test

Chironi

Bacarella

Altamore

et al. 2017

Journal of Food Products Marketing

View full text Add to dashboard Cite

The market of berries is a niche of high value in Italy. Small fruit's healthy properties are well known in the international market, but little is known about the reason for a low commercialization rate of fresh small fruit in Italy. The objective of this study was to assess consumer preferences in Italy for selected berry species. Moreover, the study aims to identify the relevant attributes of berries that affect the demand for this produce according to consumers and to compare these attributes. We assessed relevant attributes affecting the demand for fresh berries for different consumers' profiles and compared berries' attributes rankings. The results reveal high concordance between blackberries and raspberries; price is the attribute that constrains more purchases because it is deemed too high. Consumers prefer small fruit because of the rising interest in their nutraceutical value, and they have a higher willingness to pay because of this important attribute.

show abstract

Section: Statistical Data Analysismentioning

confidence: 99%

Section: Statistical Data Analysismentioning

confidence: 99%

Quality Factors Influencing Consumer Demand for Small Fruit by Focus Group and Sensory Test

Chironi

Bacarella

Altamore

et al. 2017

Journal of Food Products Marketing

View full text Add to dashboard Cite

show abstract

“…As the number of barriers differed between participant groups, it was felt inappropriate to compare proportions with individual barriers. Comparisons between participant groups were therefore made by comparing ranking using weighted rank correlation with the top-down correlation coefficient shown (r T ), based on Savage scores (13). The closer the r T is to 1.0, the greater the concordance between groups.…”

Section: Statisticsmentioning

confidence: 99%

Discordance in Perceptions of Barriers to Diabetes Care Between Patients and Primary Care and Secondary Care

et al. 2007

View full text Add to dashboard Cite

OBJECTIVE -We sought to compare perceived barriers to diabetes care between people with diabetes and different health professional groups. RESULTS -Barriers were reported in 69.7% of patients. Psychological barriers were most important (55.5%), followed by systems barriers (25.7%), and then knowledge as least important (15.3%). Psychological barriers were ranked first among general practitioners (91.0%), but systems barriers were ranked first by other health professionals (38.8 -100%). General practitioner and patient barrier group rankings were similar (r T ϭ 0.976, P Ͻ 0.05). Of specific barriers among individuals with diabetes, strictness of treatment regimen was the most frequently reported (42.3 vs. 0.1-16.8%) (P Ͻ 0.001) and 2.5 (95% CI 2.4 -2.7)-to 3.4 (3.2-3.7)-fold more than the 2nd through 4th ranked barriers. Motivation was the most common specific barrier reported by general practitioners (86%), practice nurses (31.5%), and the diabetes team (85.7%). Practice and hospital nurse/dietitian rankings were most comparable with patients (r T ϭ 0.457 and 0.466, respectively, both P Ͻ 0.05). A major area of patient-health professional discordance was the influence of other health problems, which was ranked 2nd among patients but 10th-18th among health professionals. RESEARCH DESIGN AND METHODSCONCLUSIONS -The most important barriers to diabetes care perceived by patients are psychological and particularly relate to the strictness of the regimen. Discordance between patients and different health professionals exists in the perception of the importance of different barriers to diabetes care. Diabetes Care 30:490 -495, 2007

show abstract

“…Spearman rank correlation is a non-parametric measure of the monotomic association between two numeric variables (Zar, 1998). The idea of the Spearman Rank used here will check if it is the case that on the global export market, either country is competing for share or is just complementary in the export of that product or there is no relationship at all between the two countries.…”

Section: Spearman Rank (R S ) Correlation Coefficientmentioning

confidence: 99%

“…The magnitude of the sum is related to the significance of the correlation. The advantage of the Spearman Rank coefficient is that it is a nonparametric technique thus it is not impacted by the population distribution (Zar, 1998).…”

Section: Business and Economic Researchmentioning

confidence: 99%

Has the Special Economic Zone Approach Improve Ghana’s Competitiveness in the Global Market?

Kutin-Mensah

Huang

Boateng

et al. 2017

BER

View full text Add to dashboard Cite

Ghana adopted the Special Economic Zones (SEZs) model in an attempt to stimulate economic growth by moving from an era of import-based to an export-based development strategy and also to potentially improve competiveness in the world market. However, until now, it is not well understood if this move has been beneficial and whether it has positioned Ghana particularly in terms of trade on the global market. This study examines and demonstrate if the adopted SEZ model has had any significant effects on the trade patterns in Ghana. This was undertaken by analyzing the competiveness and the dynamics and/or level of comparative advantage of selected products traded within the SEZs on sectoral levels in the world market using the Balassa Revealed Comparative Advantage (RCA) index. The

show abstract

Spearman Rank Correlation

Cited by 308 publications

References 16 publications

Quality Factors Influencing Consumer Demand for Small Fruit by Focus Group and Sensory Test

Quality Factors Influencing Consumer Demand for Small Fruit by Focus Group and Sensory Test

Discordance in Perceptions of Barriers to Diabetes Care Between Patients and Primary Care and Secondary Care

Has the Special Economic Zone Approach Improve Ghana’s Competitiveness in the Global Market?

Contact Info

Product

Resources

About