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Secondary data. Secondary data refers to data that is collected by someone other than the primary user. [1] Common sources of secondary data for social science include censuses, information collected by government departments, organizational records and data that was originally collected for other research purposes. [2]
v. t. e. Secondary research involves the summary, collation and/or synthesis of existing research. Secondary research is contrasted with primary research in that primary research involves the generation of data, whereas secondary research uses primary research sources as a source of data for analysis. [1] A notable marker of primary research is ...
Post hoc analysis. In a scientific study, post hoc analysis (from Latin post hoc, "after this") consists of statistical analyses that were specified after the data were seen. [1][2] They are usually used to uncover specific differences between three or more group means when an analysis of variance (ANOVA) test is significant. [3]
Thematic analysis is used in qualitative research and focuses on examining themes or patterns of meaning within data. [12] This method can emphasize both organization and rich description of the data set and theoretically informed interpretation of meaning. [1] Thematic analysis goes beyond simply counting phrases or words in a text (as in ...
Secondary analysis of quantitative data is relatively widespread in comparative research, undoubtedly in part because of the cost of obtaining primary data for such large things as a country's policy environment. This study is generally aggregate data analysis. Comparing large quantities of data (especially government sourced) is prevalent. [4]
A systematic review is a scholarly synthesis of the evidence on a clearly presented topic using critical methods to identify, define and assess research on the topic. [1] A systematic review extracts and interprets data from published studies on the topic (in the scientific literature), then analyzes, describes, critically appraises and summarizes interpretations into a refined evidence-based ...
Meta-analysis can also be applied to combine IPD and AD. This is convenient when the researchers who conduct the analysis have their own raw data while collecting aggregate or summary data from the literature. The generalized integration model (GIM) [97] is a generalization of the meta-analysis. It allows that the model fitted on the individual ...
Analysis of clinical trials. Clinical trials are medical research studies conducted on human subjects. [1] The human subjects are assigned to one or more interventions, and the investigators evaluate the effects of those interventions. [1][2] The progress and results of clinical trials are analyzed statistically. [3][4]