Sample at time point two and intra-rater reliability
Forty-three (84.31%) participants filled out the questionnaire a second time. Time between the two responses was a median of 45 days (mean 55.8 days, SD 27.8). The sample consisted of 38 male participants (88.37%) and had an average age of 44.7 years (SD 9.87). Out of 792 responses at time point two, 609 (78.68%) were consistent with responses from time point one. On average, 14 images were evaluated the same by the participants at both time points. The agreement was higher for images evaluated with the spectra B technique (215, 83.34%) than with the clara and spectra A technique (both 197, 76.36%). The difference was however, not statistically significant (p = 0.082).