Background: When assessing the concordance between two methods of measuring ordinal categorical data, summary measures such as Cohen`s (1960) kappa or Bangdilala`s (1985) kappa statistics are used. However, an image conveys more information than a single summary measurement. Methodology. We describe how the Man Bangdilala (1985) correspondence table constructs, interprets and illustrates its use in the visual evaluation of concordance in several clinical sample applications. Results: Correspondence graphs provide a visual impression that no summary statistics can convey, and summary statistics reduce information to a single characteristic of the data. However, the visual impression is personal and subjective and usually not reproducible from one reader to another. Conclusions: The correlation table should be used to supplement kappa or B summary statistics, not to replace them. Graphs can be very useful for researchers as an early step in understanding the relationships in their data when assessing concordance. Diagram of the agreement. / Bangdiwala, Shrikant I.; Shankar, Viswanathan.
The chord diagram is a visual representation of a square contingency table k by k. Each black rectangle represents the margin sums of the rows and columns. The shaded areas represent the correspondence according to the frequencies of the diagonal cells. They are positioned in the rectangles using the sum of the cell frequencies outside diagonal of the same row and column. Partial matching in cells outside the diagonal can be represented in the same way, reducing shading as a function of distance from the diagonal. The visualization is influenced by the order of the categories, so the graph is only useful for ordinal or binary data. The chart can have the origin in the lower left corner or top left, where it more clearly mimics the contingency table. The perfect match is represented by rectangles, all of which are perfect squares, with corners on the diagonal identity line and with shaded boxes corresponding to the rectangle. A lower correspondence is represented by the area of the shaded areas with respect to the area of the rectangles. The drawing of rectangles, because they differ from the identity line by 45 degrees, represents a distortion in the margin sums.
B252, B253, B253 offer only the scope of services. Must be combined with B102™, Owner/Architect Contract without predefined scope of architect services or other owner/architect contract. Bangdiwala (2013) developed the chord diagram in addition to the kappa or B statistics. It is invaluable for evaluating correspondence because it gives a visual impression that no rough statistic can convey. A correspondence diagram shows the agreement between two binary or semi-quantitative methods. Documents: A105™, abbreviated agreement between owner and contractor; and B105™, abbreviated Owner/Architect Agreement. Documents: C172™, Owner and Program Manager Agreement for Use in a Single Project. Documents: B171™, Owner and Design Manager Agreement, to be used in a multi-project program; B172™, Owner/Architect Agreement, for Architect of Record Services; and C171™, Owner and Program Manager Contract, for use in a multi-project program. . * B171, B172 and C171 can be modified and also used in the methods of carrying out non-design bid construction projects. If B171, B172 and C171 are used in other delivery methods, the appropriate changes must be made with the help of insurance and legal counsel. Documents: A132™, Owner/Contractor Agreement, CMa Edition; A232™, General Conditions of the Construction Contract, CMa Edition; A401™, contractor/subcontractor contract; B132™, owner/architect contract, CMa Edition; C132™, owner/site manager as an advisory contract; and C401™, Architect/Consultant Contract.
Content and templates to help you conduct exemplary and impactful research. *If Section A401 or C401 is to be used for a project with the transitional forms, the appropriate amendments must be made with the support of insurance and legal counsel. . The comments you provide here will only be used to improve this page. . If you want to better understand how we organize and classify EAR documents, watch the video » Documents: B152™, Owner/Architect Agreement for Architectural Interior Design Services; B252™, standard form of architectural services – architectural interior design; B253™, standard form of architectural services for the design of furniture, furnishings and appliances; B254™, Standardform of Architect`s Services for Purchasing Agent Services for Furniture, Furnishings, and Equipment (FF&E) Documents: C195™, SPE Agreement for Integrated Project Delivery; C196™, SPE/Owner Agreement for IPD; C197™, SPE/Non‐Owner Member Agreement for IPD; C198™, SPE/IPR Consultant Agreement; and C199™, SPE/Contractor Agreement for IPD. .