|
Construct (theory)
|
Number of items
|
Cronbach's α at baseline
|
References
|
|---|
|
Planning/Implementation (SCT)
|
7
|
.88
|
[16]
|
|
Intention (SCT)
|
4
|
.79
|
[16]
|
|
Outcome expectations (SCT)
|
8
|
.90
|
[16]
|
|
Pros (SOC)
|
5
|
.81
|
[35]
|
|
Cons (SOC)
|
3
|
.72
|
[35]
|
|
Attitude (TPB)
|
6
|
.86
|
[15]
|
|
Subjective Norm (TPB)
|
4
|
.73
|
[15]
|
|
Perceived behavioural control (TPB)
|
2
|
.56*
|
[15]
|
|
Response Efficacy (PMT)
|
3
|
.84
|
[18]
|
|
Severity (PMT)
|
1
|
NA
|
[18]
|
|
Vulnerability (PMT)
|
1
|
NA
|
[18]
|
|
Self-Efficacy (TPB/PMT/SCT/SOC)
|
12
|
.94
|
[16, 18, 35]
|
-
Note: PMT = protection motivation theory; TPB = theory of planned behaviour; SCT = social cognitive theory; SOC = stages of change
- *Pearson correlation
