An intervention modelling experiment to change GPs' intentions to implement evidence-based practice: using theory-based interventions to promote GP management of upper respiratory tract infection without prescribing antibiotics #2

Hrisos, Susan; Eccles, Martin; Johnston, Marie; Francis, Jill; Kaner, Eileen FS; Steen, Nick; Grimshaw, Jeremy

doi:10.1186/1472-6963-8-10

Table 3 Post-intervention descriptive statistics, correlations of process variables with intention and behavioural simulation & regression analyses by theory.

From: An intervention modelling experiment to change GPs' intentions to implement evidence-based practice: using theory-based interventions to promote GP management of upper respiratory tract infection without prescribing antibiotics #2

Model	Process (explanatory) variables	N items	Alpha	Mean (SD)	*Behavioural intention*				*Behavioural simulation*
					r*	B	*Beta*	*Model summary R2(adj)*	r*	B	*Beta*	*Model summary R2(adj)*
TPB	Attitude direct	3	0.55	16.9 (2.9)	0.456****	0.301****	0.267		0.23****
	Attitude Indirect	8	-	205.6 (36.1)	0.364****	0.017****	0.195		0.08^ns
	Subjective Norm	5	-	97.2 (36.7)	0.226****	0.014***	0.157		0.07^ns
	PBC direct	3	0.64	11.9 (3.5)	0.082^ns	-0.018^ns	-0.020		0.108**	0.026^ns	0.055
	PBC indirect	6	0.79	26.3 (5.6)	0.388****	0.153****	0.266	0.33	0.319****	0.076****	0.258
	Behavioural intention	4	0.83	0.01 (3.2)					0.307****	0.108****	0.210	0.14
SCT	Risk Perception (same as anticipated consequences)	3	0.61*	16.6 (2.8)	0.441****	0.344****	0.298		0.191****	0.029**	0.144
	Outcome Expectancies (same as attitude indirect)	8	-	205.6 (36.1)	0.364****	0.017****	0.190		0.105**	-0.034^ns	-0.087
	Self Efficacy	6	0.88	29.2 (5.4)	0.411****	0.178****	0.294	0.32	0.391****	0.122****	0.391	0.17
OLT	Anticipated consequences	3	0.61	16.6 (2.8)	0.441****	0.257****	0.224		0.197****	0.026^ns	0.102
	Evidence of habit	2	0.61	11.4 (2.1)	0.746****	1.048****	0.671	0.60	0.294****	0.202****	0.251	0.10
Post-intentional variables
II	Prior planning	1	-	5.8 (1.0)					0.343****	0.545****	0.332	0.12
	Action planning	3	0.92	16.5 (3.0)					0.216****	0.114****	0.206	0.05
Cross-theory analysis (variables retained in regression models)
TPB	Attitude direct					0.102**	0.101
	Subjective Norm					0.010***	0.117
SCT/OLT	Risk Perception/Anticipated consequences					0.194****	0.168
OLT	Evidence of habit					0.948****	0.605
SCT	Self-efficacy					0.061**	0.090	0.63	0.393****	0.091****	0.294
II	Prior planning								0.343****	0.326****	0.198	0.18

* = Pearson correlation coefficient. **p < 0.05. ***p = 0.001. ****p < 0.001. ns = non-significant

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ISSN: 1472-6963

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