78 items were then added together to produce a VTAS score that ranged from 16 – 80. A total of 148 participants (N=148) were included in the sample. The actual VTAS scores ranged from 20 – 78 with a mean score of 51.51 and a standard deviation of 13.179.
Reliability testing. The split-half method and Chronbach’s alpha were conducted with both the pilot study data and final survey data to test reliability of the VTAS. Both tests are designed to determine how well the components of a survey instrument (i.e. Likert scale surveys) measure what it intends to measure (Statistics Solutions, 2019), and in this case, they were used to measure how well the VTAS actually measures attitudes towards video therapy.
Split-half method. To conduct the split-half method, a random number generator (found online) was used to randomly split the 16 VTAS items into two groups (8 and 8). For the pilot study data, the following two groups resulted: Group 1: Items 9, 11, 12, 13, 18, 20, 21, and 23 Group 2: Items 10, 14, 15, 16, 17, 19, 22, and 24. For the final survey data, the random number generator was used once again, and this time the resulting two groups were as follows: Group 1: Items 9, 12, 14, 17, 18, 20, 22, 24 Group 2: Items 10, 11, 13, 15, 16, 19, 21, 23