- Title
- Development and evaluation of the Motivation to Limit Screen-time Questionnaire (MLSQ) for adolescents
- Creator
- Lubans, D. R.; Lonsdale, C.; Plotnikoff, R. C.; Smith, J.; Dally, K.; Morgan, P. J.
- Relation
- ARC.DP120100611 http://purl.org/au-research/grants/arc/DP120100611
- Relation
- Preventive Medicine Vol. 57, Issue 5, p. 561-566
- Publisher Link
- http://dx.doi.org/10.1016/j.ypmed.2013.07.023
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2013
- Description
- Objective: The aim of this study was to design and evaluate a brief scale to assess adolescents' motivation to limit their screen-time using a self-determination theory (SDT) framework. Methods: The development and evaluation of the Motivation to Limit Screen-time Questionnaire (MLSQ) involved three phases. In Phase 1, experts in SDT were asked to review the content validity of the MLSQ items. In Phase 2, adolescent boys (N = 342, mean age = 12.7 ± .5 years) completed the MLSQ and the factorial validity of the model was explored. In Phase 3, adolescent boys (N = 48, mean age = 14.3 ± 1.3 years) completed the MLSQ on two occasions separated by 1-week. Phases 2 and 3 were conducted in New South Wales, Australia in 2012. Results: Twenty four SDT experts reviewed the original scale items. Validity coefficients associated with six of the original eight items exceeded the threshold value (V > .68, p < .01). In Phase 2, the revised three-factor (9-items) model provided a good fit to the data (SRMR = .07, CFI = .96). The intraclass correlation (ICC) values were .67 for amotivation and .70 and .82 for controlled and autonomous motivation, respectively. Conclusion: This study has provided preliminary evidence for the validity and reliability of the MLSQ in adolescent boys.
- Subject
- self-determination theory; motivation; screen-time; adolescents; validity; reliability; questionnaire
- Identifier
- http://hdl.handle.net/1959.13/1296360
- Identifier
- uon:19237
- Identifier
- ISSN:1096-0260
- Language
- eng
- Full Text
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