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  2. Scale (social sciences) - Wikipedia

    en.wikipedia.org/wiki/Scale_(social_sciences)

    The index of consumer confidence, for example, is a combination of several measures of consumer attitudes. A typology is similar to an index except the variable is measured at the nominal level . Indexes are constructed by accumulating scores assigned to individual attributes, while scales are constructed through the assignment of scores to ...

  3. Index (statistics) - Wikipedia

    en.wikipedia.org/wiki/Index_(statistics)

    Sample of a well maintained data [clarification needed]. In statistics and research design, an index is a composite statistic – a measure of changes in a representative group of individual data points, or in other words, a compound measure that aggregates multiple indicators.

  4. List of construction methods - Wikipedia

    en.wikipedia.org/wiki/List_of_Construction_methods

    The list of construction methods covers the processes and techniques used in the construction process. The construction method is essential for civil engineers; utilizing it appropriately can help to achieve the desired results. The term building refers to the creation of physical structures such as buildings, bridges or railways. One of the ...

  5. Test construction strategies - Wikipedia

    en.wikipedia.org/wiki/Test_Construction_Strategies

    Also known as external or criterion group method, empirical test construction attempts to create a measure that differentiates between different established groups. For example, this may include depressed and non-depressed individuals, or individuals high or low in levels of aggression.

  6. Index (economics) - Wikipedia

    en.wikipedia.org/wiki/Index_(economics)

    For example, purchasing power parity comparisons of currencies are often constructed with indexes. There is a substantial body of economic analysis concerning the construction of index numbers, desirable properties of index numbers and the relationship between index numbers and economic theory.

  7. Pavement condition index - Wikipedia

    en.wikipedia.org/wiki/Pavement_Condition_Index

    The pavement condition index (PCI) is a numerical index between 0 and 100, which is used to indicate the general condition of a pavement section.The PCI is widely used in transportation civil engineering [1] and asset management, and many municipalities use it to measure the performance of their road infrastructure and their levels of service. [2]

  8. Earned value management - Wikipedia

    en.wikipedia.org/wiki/Earned_value_management

    According to the PMBOK (7th edition) by the Project Management Institute (PMI), Cost performance index is a "measure of the cost efficiency of budgeted resources expressed at the ratio of earned value to actual cost."

  9. Survey methodology - Wikipedia

    en.wikipedia.org/wiki/Survey_methodology

    Survey methodology is "the study of survey methods". [1] As a field of applied statistics concentrating on human-research surveys, survey methodology studies the sampling of individual units from a population and associated techniques of survey data collection, such as questionnaire construction and methods for improving the number and accuracy of responses to surveys.