Table 4 Correlations of intention to use and perceptions of mobile phone-based messaging for MNHI among pregnant mothers in Jimma Zone, Ethiopia, (n = 279)

1

Intention

1

2

Perceived usefulness

0.716^a

1

3

Perceived easiness

0.720^a

0.767^a

1

4

Self-efficacy

0.634^a

0.646^a

0.839^a

1

5

Perceived acceptability

0.718^a

0.684^a

0.722^a

.677^a

1

6

Perceived feasibility

0.666^a

0.597^a

0.587^a

0.536^a

0.818^a

1

Number of items

6

7

5

6

10

6

Scale range

6–30

7–35

5–25

6–30

10–50

6–30

Means

22.4

27.69

19.59

23.04

39.72

23.82

Standard deviations

4.59

5.37

4.31

5.5

7.2

5.01