In psychology, many different guidelines exist for developing measurement instruments and manipulations of constructs. When conducting empirical research or secondary research, therefore, it is important to have a clear idea, and clearly communicate, which guidelines are followed. However, these guidelines are fragmented, and no universal consensus exists regarding how any construct must be measured or manipulated. Therefore, developing one ‘final’ taxonomy is not feasible or even desirable. At the same time, it is important that people clearly communicate their ‘study-specific taxonomy’. The dct package makes it possible to combine these two goals.

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You can install the released version of dct from CRAN with:

You can install the development version of dct from GitHub with:


(assuming you have devtools installed; otherwise, install that first using the install.packages function)