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Synthetic Control Method
The synthetic control method is a statistical method used to evaluate the effect of an intervention in comparative case studies. It involves the construction of a weighted combination of groups used as controls, to which the treatment group is compared. This comparison is used to estimate what would have happened to the treatment group if it had not received the treatment. Unlike difference in differences approaches, this method can account for the effects of confounders changing over time, by weighting the control group to better match the treatment group before the intervention. Another advantage of the synthetic control method is that it allows researchers to systematically select comparison groups. It has been applied to the fields of political science, health policy, criminology, and economics. The synthetic control method combines elements from matching and difference-in-differences techniques. Difference-in-differences methods are often-used policy evaluation tools that esti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparative Case Study
general linguistics, the comparative is a syntactic construction that serves to express a comparison between two (or more) entities or groups of entities in quality or degree - see also comparison (grammar) for an overview of comparison, as well as positive and superlative degrees of comparison. The syntax of comparative constructions is poorly understood due to the complexity of the data. In particular, the comparative frequently occurs with independent mechanisms of syntax such as coordination and forms of ellipsis (gapping, pseudogapping, null complement anaphora, stripping, verb phrase ellipsis). The interaction of the various mechanisms complicates the analysis. Absolute and null forms A number of fixed expressions use a comparative form where no comparison is being asserted, such as ''higher education'' or ''younger generation''. These comparatives can be called ''absolute''. Similarly, a null comparative is one in which the starting point for comparison is not stated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mariel Boat Lift
The Mariel boatlift () was a mass emigration of Cubans who traveled from Cuba's Mariel Harbor to the United States between 15 April and 31 October 1980. The term "" (plural "Marielitos") is used to refer to these refugees in both Spanish and English. While the exodus was triggered by a sharp downturn in the Cuban economy, it followed on the heels of generations of Cubans who had immigrated to the United States in the preceding decades. After 10,000 Cubans tried to gain asylum by taking refuge on the grounds of the Peruvian embassy, the Cuban government announced that anyone who wanted to leave could do so. The ensuing mass migration was organized by Cuban Americans, with the agreement of Cuban President Fidel Castro. The arrival of the refugees in the United States created political problems for US President Jimmy Carter. The Carter administration struggled to develop a consistent response to the immigrants, and many of the refugees had been released from jails and mental heal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistical Methods
Statistics (from German: ''Statistik'', "description of a state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal". Statistics deals with every aspect of data, including the planning of data collection in terms of the design of surveys and experiments.Dodge, Y. (2006) ''The Oxford Dictionary of Statistical Terms'', Oxford University Press. When census data cannot be collected, statisticians collect data by developing specific experiment designs and survey samples. Representative sampling assures that inferences and conclusions can reasonably extend from the sample to the population as a whole. An experim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
