111 THE STORE-AND-FORWARD TELEMEDICINE SERVICE USER-SATISFACTION QUESTIONNAIRE relevant” focus group items (step 3) had high percentages of “NA” and/or redundancy answers in the psychometric analysis. Data was suitable for FA according to the overall KMO value (0.90) and Bartlett’s test of sphericity (p < 0.05). All individual items had a KMO of >0.80. PCA confirmed a sixfactor solution. Based on common FA, Q14 did not support any of the factors sufficiently (highest factor loading = 0.28). Six items had a factor loading between 0.30 and 0.40. The CFA showed sufficient loadings (>0.45) for almost every single item except for items Q8 (0.44) and Q23 (0.40). As shown in Table 6.2, ITC was considered sufficient (>0.40) for all items. Factors 1 and 2 had the lowest Cronbach’s alpha (0.77) and factors 3, 4, 5 the highest (0.89). None of the items had to be removed to increase the Cronbach’s alpha to the 0.70 threshold. Table 6.2: Results SAF-TSUQ validation. Item description NA ≥ 25% rs > 0.70 CFA loading ITC α Factor 1: Training αt (CI) = 0.77 (0.72 – 0.82) Q1 The training and explanation offered by [telemedicine organization] are sufficient to be able to use the [telemedicine platform] in my work – – 0.55 0.71 0.70 Q2 I am satisfied with the possibilities for additional and/or continuing education offered by [telemedicine organization] 45.3a – 0.46 0.61 0.75 Q3 I am satisfied with the tasks I perform within my profession in the [telemedicine platform]b – – 0.71 0.76 0.69 Q4 By using the [telemedicine platform] I am able to develop my knowledge and skills adequately – – 0.67 0.75 0.69 Q5 I believe that [telemedicine organization] meets my wishes and expectations for telemedicine – – 0.76 0.78 0.68 Factor 2: Communication αt (CI) = 0.77 (0.72 – 0.83) Q6 The information and manuals that are provided to me by [telemedicine organization] and the instructions given to perform my work are sufficient – – 0.79 0.80 0.70 6
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