Infant behaviour questionnaire - revised version: a psychometric study in a Portuguese sample.

Background: Although the original characteristics of temperament tend to remain constant over the course of development, environmental circumstances may influence infants' reactions and behaviour. Parents' reports of infant temperament are rich informants of infant behaviours in different contexts.

Objective: This study aimed to examine the psychometric properties of the Portuguese version of the Infant Behaviour Questionnaire - Revised (IBQ-R) and test the adequacy of the original and other previously published structures to the Portuguese data.

Drivers for OSH interventions in small and medium-sized enterprises.

The debate concerning occupational safety and health (OSH) interventions has recently focused on the need of improving the evaluation of interventions, and in particular on the need for providing information about why the intervention worked or not, under what circumstances and in which context. Key concepts in the analysis of the context are the drivers, i.e.