Test size calculation
A previous research discovered the end result size (CohenвЂ™s d) of distinction in unprotected sexual activity between teenagers that has sexted (delivered or gotten intimately explicit pictures on cellphones) and the ones whom did not was 0.35 [ 18 ]. By using this as being a guide point, it absolutely was determined that a minimal test size of 67 topics had been had a need to detect an improvement by separate t-test with an electrical of 95% and a two-tailed need for 0.05.
The analysis instrument is shown in S1 Instrument .
All analytical analyses were carried out by the SPSS 23 with p values Ethics
All writers declare they will have no conflict of great interest.
Ethics approval was obtained through the HKU/HA HKW review that is institutional, the Joint CUHK-NTEC Clinical Research Ethics Committee and City University of Hong Kong Human Subjects Ethics Sub-Committee.