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. 2019 Apr 10;14(4):e0214450. doi: 10.1371/journal.pone.0214450

Fig 4. Kappa statistics comparing selected non-communicable disease risk factors in surveys using computer assisted telephone interviews and interactive voice response in Bangladesh and Tanzania.

Fig 4

CATI–Computer Assisted Telephone Interviews; IVR–Interactive Voice Response; CATI→IVR indicates IVR as follow up mode (after CATI first contact). IVR→CATI indicates CATI as follow up mode (after IVR first contact).