Exercise

Concurrent validity & Likert-style items

Let's return to the our customer satisfaction survey, stored as c_sat. In addition to collecting responses to the standard ten items, another five-point Likert item was included in the survey asking respondents whether they would recommend the brand to a friend. Let's test whether our customer satisfaction construct is positively correlated to this response.

psych, lavaan, dplyr and semPlot have been loaded into your environment.

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Although these variables are on the same scale of 1 to 5, standardizing can assist in interpretation of results. Bind c_sat and c_sat_recommend by column and scale the results, storing this as c_sat_rec_scale.