Cluster Analysis

Aldenderfer, Mark; Blashfield, Roger K.

doi:10.4135/9781412983648

Cited by 2,557 publications

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“…Taxonomic analysis requires a theoretical framework identifying characteristics across subgroups [13]. Contingency theory describes differentiation and integration as "environmentally required states" confronting each organization and influencing its effectiveness, with organizational forms described according to varying levels of differentiation and integration as they adopt structures that best fit the demands of their tasks and environments [14: 132].…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…Taxonomic analysis began with the selection of classification variables from an explicit theoretical framework [13], as previously described. Mahalanobis distance measures were evaluated across observations, applying a 0.001 significance level to evaluate potential outliers.…”

Section: Taxonomic Analysismentioning

confidence: 99%

“…The characteristics of each taxonomic group were then compared using analysis of variance (ANOVA) and pairwise multiple comparison methods to examine the degree to which taxonomic groups differed across conceptual dimensions. The interpretation of these groups serves as a validation technique of the final taxonomic analysis solution [13]. Mahalanobis distance measures identified three LMSs with distance measures significantly different from the remaining sample at the 0.001 level.…”

Section: Taxonomic Analysismentioning

confidence: 99%

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Clustered and distinct: a taxonomy of local multihospital systems

Shay

Mick

2016

Health Care Manag Sci

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Despite their prevalence and power in markets throughout the United States, local multihospital systems (LMSs) -also referred to as hospital-based "clusters" -remain an understudied organizational form, with studies instead primarily focusing either upon individual hospitals or viewing hospital systems collectively without distinguishing the local "sub-systems" that comprise larger regional or national hospital chains. To better understand these organizational forms, we develop a taxonomy specifically devote to LMSs, applying taxonomic analysis methods to a sample of LMSs in six U.S. states while accounting for LMSs' geographic arrangements and nonhospital-based service locations. Our analysis identifies five distinct LMS categories, with forms clearly distinguished according to their varying degrees of differentiation and integration. The study's results accentuate the importance of accounting for hospital systems' activities and arrangements in local markets -including their non-hospital-based sites -and highlight differences in systems' achievement of integration and coordination across services and locations, providing considerations in light of U.S. health system reform as well as international patterns of regional system formation.

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Section: Theoretical Frameworkmentioning

confidence: 99%

Section: Taxonomic Analysismentioning

confidence: 99%

Section: Taxonomic Analysismentioning

confidence: 99%

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Clustered and distinct: a taxonomy of local multihospital systems

Shay

Mick

2016

Health Care Manag Sci

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“…Cluster analysis is less visual than MDS but can establish patterns in a statistically somewhat more robust way. The method is widely used in disciplines such as biology, the social sciences (e.g., social network analysis), dialectology (cf., for instance, Shackleton, 2005), and dialectometry (cf., for example, Goebl, 2004;Nerbonne et al, 1999); for an introduction to the technique from the social scientist's perspective, see Aldenderfer and Blashfield (1984). We used SPSS's hierarchical agglomerative clustering algorithm to partition the varieties in our database into clusters, relying on between-groupslinkage as clustering method and square Euclidean distance as interval measure.…”

Section: Varieties Of English: Cluster Analysismentioning

confidence: 99%

The morphosyntax of varieties of English worldwide: A quantitative perspective

Szmrecsanyi

Kortmann

2009

Lingua

111

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What are the large-scale patterns and generalizations that emerge when investigating morphosyntactic variation in World Englishes from a bird's eye perspective? To address this question, this study draws on the questionnaire-based morphosyntactic database of the Handbook of Varieties of English, utilizing a number of quantitative analysis techniques (frequency and correlation measures, multidimensional scaling, cluster analysis, and principal component analysis). We demonstrate (i) that the database yields a number of generalizations and implicational tendencies relating to vernacular angloversals and universals of New Englishes, (ii) that there is a surprisingly consistent typological division between English L1 vernaculars, on the one hand, and English-based pidgins and creoles on the other hand, and (iii) that World Englishes can, on aggregate, be seen to vary along two major dimensions which we interpret as being indicative of morphosyntactic complexity and analyticity. In conclusion, we offer that the Handbook's morphosyntactic database presents some interesting methodological challenges to dialectology and dialectometry. #

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“…The so-called elbow criterion illustrates this procedure. The largest kink of the corresponding graphic (see Figure 1), the so-called "elbow", points to the appropriate number of clusters (Aldenderfer and Blashfield, 1984).…”

Section: Regional Cluster Analysismentioning

confidence: 99%

Regional per Capita-Income — The Importance of Region-Specific Production Factors

Fornahl

Schaffer

Siegele

2009

Swiss J Economics Statistics

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Summary Endowment with infrastructure, human and cultural capital is highly significant for regional economic performance. After clustering the regions, this hypothesis is tested for Austrian, German and Swiss NUTS 3 regions by applying a quantile regression analysis. First results confirm the hypothesis for all factors. However, coefficients differ significantly both between clusters as well as among the quantiles of each cluster. Furthermore, insights into the regions’ efficiency in using these factors are generated: investments into region-specific factors will not push the regional economy automatically, but the under- or over-average efficiency has to be taken into account.

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Cluster Analysis

Cited by 2,557 publications

References 0 publications

Clustered and distinct: a taxonomy of local multihospital systems

Clustered and distinct: a taxonomy of local multihospital systems

The morphosyntax of varieties of English worldwide: A quantitative perspective

Regional per Capita-Income — The Importance of Region-Specific Production Factors

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