Sim Chen Xing

Category: R

  • Construct Discovery using Exploratory Factor Analysis (EFA)

    Construct Discovery using Exploratory Factor Analysis (EFA)

    Say for example you have developed a brand new questionnaire that no one has used before. You designed it to measure an abstract construct, but you are unsure if the questionnaire is valid statistically. What would you do? This is where exploratory factor analysis (EFA) comes in. EFA is a statistical technique used when you…

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    Chen Xing

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  • Checking your data with R

    Checking your data with R

    Before any analysis is done, it is the job of the data analyst to ensure that the data is ready. In this post, we will look into how we can do that with R. First, we need to identify the type of data we are looking at before any form of preparation is done. Generally,…

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    Chen Xing

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