The data were analysed with the statistical computer program SPSS/PC (IBM Corporation, New York, USA), and Cronbach’sawas calculated by means of the reliability option. This resulted in a Cronbach’saof 0.91. Pearson’s product–moment correlation of the scale’s items ranged from a minimum value of 0.24 to a maximum value of 0.69. Thus, 20 of items were deleted from the scale. This resulted in a final draft of 40 items