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Table 2 Scale reliability

From: Extending the theory of planned behavior to predict and nudge toward the subscription to a public transport ticket

Variable Item Corrected item-total correlation Cronbach’s α
Attitude AT1 .767 .923
AT2 .839
AT3 .833
AT4 .784
AT5 .809
Subjective norm SN1 .834 .916
SN2 .829
SN3 .839
SN4 .551
SN5 .715
SN6 .827
SN7 .602
Perceived behavioral control PBC1 .810 .908
PBC2 .749
PBC3 .839
PBC4 .785
PBC5a .250
Environmental concern EC1 .767 .865
EC2 .671
EC3 .655
EC4 .682
EC5 .698
EC6a .485
  1. aDeleted due to low item-to-total correlation. Cronbach’s α reported without these