Healthcare professionals' intentions and behaviours: A systematic review of studies based on social cognitive theories

Table 4 Model efficacy to predict healthcare professionals' behaviours and intentions according to the methodological qualities of the studies

Characteristic of the studies	Number of participants (studies)	Frequency- weighted mean R²
Prediction of behaviour
Sample size
- N < 150	833 (12)	0.22
- N ≥ 150	1 279 (3)	0.38
Psychometric quality
- No information/poor values	1 119 (7)	0.31
- Complete information/good values	993 (8)	0.32
Behavioural measure
- Self-report	1 286 (4)	0.44
- Objective	826 (11)	0.13
Level of correspondence for intention-behaviour*
- Poor/unclear	546 (6)	0.10
- Good	1 566 (9)	0.39
Prediction of intention
Sample size
- N < 150	3 187 (34)	0.50
- N ≥ 150	11 799 (30)	0.61
Psychometric quality
- No information/poor values	3 112 (15)	0.47
- Complete information/good values	11 874 (49)	0.62

* The intention-behaviour correspondence was good for all self-reported measurements
Note: Because there were missing data in few publications, total differs from 16 and 72 studies for the behaviour and intention, respectively.

ISSN: 1748-5908