Development and Validation of a 4-STEP-Training Program for Social Media Addiction (4-STEP-TPS) Among Young Adults: A Randomized Control Trial

Fatigue Assessment Scale (FAS)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The Fatigue Assessment Scale (FAS) was developed to evaluate the physical and mental symptoms of fatigue (Michielsen et al., 2003). It is a self-report measure with 10 items rated on a 5-point Likert scale ranging from 1 (never) to 5 (always). The scale has 2 subscales, with mental fatigue measured by the sum of items 3, 6, 7, 8, and 9 and physical fatigue measured by the sum of items 1, 2, 4, 5 and 10. Items 4 and 10 are reverse-scored. The total scores range from 10, indicating the lowest level of fatigue, to 50, indicating the highest level of fatigue. The scale has an internal consistency of 0.90 and good validity (Michielsen et al., 2003).

Insomnia Severity Index (ISI)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The Insomnia Severity Index (ISI) was developed as a screening measure for insomnia as well as an outcome measure in treatment research (Bastien et al., 2001). It is a self-report measure with 7 items rated on a 5-point Likert scale ranging from 0 to 4. The total scores range from 0 to 28, with higher scores indicating more acute insomnia symptoms. Although not validated, the developers suggest cutoff scores to be used for interpretation, with total scores of 0-7 indicating "no clinically significant insomnia," scores between 8-14 indicating "subthreshold insomnia," scores between 15-21 indicating "clinical insomnia (moderate severity)," and scores in the range 22-28 indicating "clinical insomnia (severe)." The scale has an internal consistency of 0.74 (Bastien et al., 2001).

Pubbing Scale (PS)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The Phubbing Scale was developed to measure the phubbing behaviors (Karadağ et al., 2015). The scale contains 10 items, rated from 1 (never) to 5 (always) in a 5-point Likert scale, the following 2 factors were found: (i) Factor 1 (1-5 items; α = .87) and (ii) Factor 2 (6-10 items; α = .85). The content of these factors can be summarized as follows: (i) Communication disturbance: Higher scores indicate that participants often disturb their existing communications by dealing with their mobile phones in a face-to-face communication environment. (ii) Phone obsession: Higher scores indicate that participants constantly need their mobile phone in environments lacking face-to-face communication.

Secure Flourish Index (SFI)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The Secure Flourish Index (SFI) was developed to measure long-term flourishing across 6 domains happiness and life satisfaction (items 1-2), physical and mental health (items 3-4), meaning and purpose (items 5-6), character and virtue (items 7-8), close social relationships (items 9-10), and financial and material stability (items 11-12) (Weziak-Bialowolska et al., 2017). It is a self-report scale with 2 items for each of the 6 domains, totaling to 12 items rated on a scale of 0-10. Total scores range from 0 to 120 with higher scores indicating greater flourishing. It has an internal consistency of 0.85 and good construct validity (Weziak-Bialowolska et al., 2017).

Depression, Anxiety and Stress Scales (DASS)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The DASS-21 is the shortened version of the DASS-42 was designed to measure the symptoms of depression, anxiety, and stress (Lovibond \& Lovibond, 1995). It is a self-report measure with 21 items rated on a 4-point Likert scale ranging from 0 to 3. Each of the three DASS-21 scales depression (items 3, 5, 10, 13, 16, 17, 21), anxiety (items 2, 4, 7, 9, 15, 19, 20), and stress (items 1, 6, 8, 11, 12, 14, 18) contains 7 items. The scale has good internal consistency and construct validity in both clinical and non-clinical samples (Antony et al., 1998). Scores on the DASS-21 will need to be multiplied by 2 to calculate the final score. After obtaining the final score for each depression, anxiety, and stress, the final score is compared to the recommended cut-off scores for severity levels (normal, moderate, severe).

Social Networking Addiction Scale (SNAS)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The Social Networking Addiction Scale (SNAS) was developed to measure addiction of all forms of social networking across six-dimensions salience (items 1-4), mood modification (items 5-7), tolerance (items 8-10), withdrawal (items 11-14), conflict (item 15-17), and relapse (items 18-21) (Shahnawaz \& Rehman, 2020). The SNAS is a self-reported scale which entails 21-items scale rated on 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). The score can range from 21 to 147. Any score above a total score of 84 signifies addiction. The scale has demonstrated good test-retest reliability of 0.88 and good validity as reported by Shahnawaz and Rehman (2020).

Fear of Missing Out Scale (FoMOs)

时间窗: At screening, after 4 weeks, and reassessment up to 6 months

The Fear of Missing out Scale (FoMOs) was developed to measure FoMO (Przybylski et al., 2013). It is a self-report questionnaire of 10-items rated on a 5-point Likert scale ranging from 1 (not at all true of me) to 5 (extremely true of me). The total scores of the scale range between 10 and 50, where higher scores indicate a higher level of fear of missing out. The scale has been shown to exhibit strong internal consistency of 0.87 to 0.90 and good validity (Przybylski et al., 2013).