The six-item disliked-party battery shows high internal consistency.

Evidence

Next, we calculate mean scores for every respondent over all available items from the scale. The distributions (see SI, part C, Table C1) are left skewed in both countries, and more left skewed for the first than the second/third disliked party. We also test the reliability of our six-item battery by using Cronbach’s alpha (Cronbach 1951). They range between 0.87 (Germany, most disliked party) and 0.94 (Italy, third disliked party), and thus exceed the 0.80 threshold of acceptability indicated in the literature (Boateng et al. 2018). — Sabrina J. Mayer and Luana Russo, What one is not, 79