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Table 10 User feedback on autobiographical authentication scheme

From: Evaluating smartphone-based dynamic security questions for fallback authentication: a field study

Statement Call SMS Location App Music Battery Activity
Mode Med Mode Med Mode Med Mode Med Mode Med Mode Med Mode Med
It was easy for me to recall 4 4 4 3.5 5 4 4 4 5 4 5 4 3 3
It was easy for my close friends to guess 1 2 1 2 3 3 3 3 1 3 2 2 2 2
It was easy for me to guess my close friends’ questions 1 3 2 2.5 3 3 3 3 2 2 2 2.5 2 2
It was easy for a stranger to guess 1 1 1 1 1 1 1 1.5 1 1 2 2 1 1
It was easy for me to guess stranger’s questions 1 1 1 1 1 1 1 2 1 1 2 2 1 1
  1. A five-point Likert-scale was used on a scale of 1 (strong disagreement) to 5 (strong agreement) with the given statement. Mode and median values are shown for each statement and given question type