Mobile Phone Use Research Articles

The promise and perils of digital finance: evidence from crime rate in China

ABSTRACT This study explores the societal impact of the rapid global expansion of digital finance, employing China Household Finance Survey within a criminal economics framework. We found that the development of digital finance effectively alleviates the overall crime incidence, particularly in regions with higher mobile phone usage and lower proportions of older adults. The crime reduction effect correlates with the decline in cash transactions and the promotion of entrepreneurial activities. Moreover, variations exist in different digital finance services on property and non-property crimes. This empirical evidence offers valuable insights into the broader implications for countries experiencing unprecedented digital finance growth.

Use of mobile phones to collect data on COVID-19: phone access and participation rates, in Rakai, Uganda

ABSTRACT During the COVID-19 pandemic lockdown, we deployed a rapid, mobile phone-based survey to assess access and participation rates when using mobile phones to collect data on COVID-19 in Rakai, south-central Uganda. We sampled prior Rakai Community Cohort Study (RCCS) participants based on HIV status using mobile phone contacts. We administered a 30-minute phone-based interview to consenting participants to assess their knowledge about different aspects of COVID-19 and their access to care. Our analysis compares the mobile phone survey participation rates with historic participation rates in regular RCCS face-to-face interviews. We supplemented phone survey data with demographic, behavioral, and HIV status data from prior face-to-face RCCS surveys. Phone access in Round 19 of the RCCS was found to be 90.2%, with lower access among older people, and people living with HIV. When including only individuals who participated in the previous RCCS survey round, participation in the face-to-face survey (81.9%) was higher than participation in our phone survey (74.8%, p < .001). Survey participation was higher among people living with HIV compared to HIV-negative individuals (84.0% vs 81.4%, p < .001) in the face-to-face survey, but in the phone survey the reverse was found, with participation rates being higher among HIV-negative individuals compared to people living with HIV (78.0% vs 71.6%, p < .001). It was possible to collect data from an existing population cohort during the lockdown using phones. Phone access was high. Overall participation rates were somewhat lower in the phone survey, notably in people living with HIV, compared to the face-to-face survey.

Co-present mobile phone use as an expectancy violation: revisiting ‘phubbing’ in two lab-based experiments

ABSTRACT Two lab-based experiments (N = 81 and N = 74) examined effects of co-present mobile phone use (frequently conceptualized as ‘phubbing’) on how individuals experience social interactions. The first experiment was modeled after the original Expectancy Violation Theory experiment by Burgoon and Le Poire (1993). Results showed that phubbing predicted perceptions of expectancy violation. These perceptions mediated the association between phubbing and several indicators of both impression formation as well as interpersonal attraction. The second experiment showed that more intensive phubbing led to poorer ratings of the confederate’s attentiveness, conversation quality, and perceived relationship quality than less intensive phubbing. Together, the two experiments support that phubbing, especially when it is more intensive, can harm relational outcomes.

Roles of Personal Values and Information Technology Usage in Forming the University Students’ View of Environmental Sustainability: A Preliminary Regional Study of Economics and Business Students

This study focuses on two significant factors shaping university students’ perception of environmental sustainability. Those are (a) personal values, measured by the Portrait Values Questionnaire (PVQ) and (b) the usage of and proficiency in information technology. Personal values have been widely used to analyze individual perspectives toward various issues, including environmental ones. As contemporary social arrangements include significant influences from social networks and mobile phone usage, overall engagement with technology becomes an essential factor affecting university student attitudes and behaviors. While the individual impact of those factors can be found in the extant literature, we look into their interaction concerning university student pro-environmental attitudes, measured by the Revised NEP (New Ecological Paradigm) Scale, and their environmental self-efficacy. Our sample comes from the population of undergraduate business and economics students from Central and Southeast Europe, specifically Slovenia, Croatia, Bosnia and Herzegovina, Serbia, and Montenegro. We discuss our findings in the context of previous studies from the same regions and consider the unique socio-economic factors. The research results address Sustainable Development Goals 4 (quality education), 12 (responsible consumption and production), and 13 (climate action) by analyzing the factors contributing to university student pro-environmental attitudes and their self-efficacy in the context of their information technology usage and proficiency.

Teacher's view of the educational relationship between teenagers and smartphones in Spain

ABSTRACT Beyond being classified as an educational tool, mobile phones are an inescapable part of teenagers’ lives, the interface for their “expanded self”. In Spain, the educational policy regarding the use of mobile phones in schools is vague, so it is interesting to know what teachers think about the educational relationship between mobile phones and adolescents. A qualitative approach was used to analyse the content of 10 focus groups in 10 Spanish secondary schools, in which 72 teachers participated. Six thematic cores were identified that characterise the educational image of mobile phones: regulations, their use in the school environment, students’ digital literacy, teachers’ digital competence, teachers’ demands for good use, and insights for the future. In conclusion, for teachers, mobile enhanced learning may remain a pipe dream unless young people are educated in digital literacy and the current educational policies regarding the use of these devices (for, against or indifferent to it) are clarified. As things stand, they represent an obstacle to be overcome in the Spanish education system.

Digital revolution and the gender divide: factors affecting mobile phone use in India

ABSTRACT As the world digitises, being able to access and use a mobile phone is important in order to be able to participate fully in day-to-day life, accessing digital services and online information. While mobile phone handsets and cheap data plans are now ubiquitous in India, women’s access to and use of mobile phones is significantly more limited than that of men. The availability of the technology is therefore not the only factor affecting women’s access and use of mobile phones. This paper proposes a novel framework operating at three levels – individual, family and community levels, to understand the factors that affect women’s access to and use of mobile phones, and provides a snapshot of mobile phone access and use of low-income women in India based on 60 structured interviews across six states. We find that women’s mobile phone use is often constrained, based on personal factors – confidence to use a phone or adequate digital literacy; family-level factors – permission to use the phone, monitoring of phone use and community-level factors – socio-cultural norms around appropriate type and place of use. This paper contributes to a significant gap in the literature on digitisation and women’s access and use of mobile phones in India. It highlights that while the digital revolution holds great promise, the use of mobile phones is often constrained for women.

Determinants of Mobile Phone Usage Among Young Adults in Zanzibar

Mobile phones have become a ubiquitous communication tool, particularly among young adults. What was once a simple technological device has now transformed into a social tool, deeply embedded in the daily lives of these individuals. This paper explores mobile phone usage among young adults in Zanzibar from behavioral, economic, and psychological perspectives. Data was collected from 375 participants, consisting of Zanzibar youth aged 16 to 40, residing in both rural and urban areas, through semi-structured interviews. The findings indicate that young adults utilize mobile phones for various purposes, including communication with family and friends, browsing the internet, consuming media, and playing games. The study also delved into the extent of mobile phone dependency, as well as the positive and negative attitudes surrounding its use. It was found that many young adults spend excessive time and money on mobile phones, sometimes prioritizing airtime and data bundles over basic necessities. The paper concludes with recommendations aimed at fostering balanced mobile phone usage among the younger generation

The Effects of Phishing Attacks on Mobile Phone Users in Tanzania: A Case of Kariakoo Market, Dar es Salaam

This study aimed at understanding phishing attacks targeting mobile phone users in Tanzania, focusing on the investigation of effects of these attacks on the mobile phone users. The study used technology threat avoidance theory as its theoretical framework. Respondents were selected using a purposive stratified sampling method to ensure diverse representation across various demographics and business sectors. A descriptive research design was employed and traders in Kariakoo market, Dar es Salaam were the target population. A sample size of 394 respondents was chosen and data obtained through structured questionnaires and in-depth interviews. Quantitative data were analyzed using SPSS, while qualitative data were examined with Deedose. The study revealed social, economic, and psychological effects of phishing attacks to mobile phone users in Tanzania. Socially, there was a noticeable decline in trust toward digital communications, leading to altered online behaviors and interactions. Economically, the effects included substantial financial losses and disruptions to business operations, impacting both individuals and organizations. Psychologically, the study found that victims experienced emotional distress, anxiety, and a heightened sense of vulnerability, prompting an increased awareness and caution regarding cyber security practices. The study concluded that phishing attacks posed significant social, economic, and psychological challenges for mobile phone users in Tanzania, with effects varying across different demographic groups. It also revealed that users' age, gender, education, and business sector influenced their susceptibility to phishing attacks, leading to diverse experiences and vulnerabilities within the population. The study recommends implementation of targeted awareness campaigns through popular communication channels, such as social media ads and television, to maximize reach and engagement, especially among younger users who are frequently online.

Investigating pedestrians’ red light running intentions at urban intersections in different traffic Environments: A scenario-based analysis guided by theoretical frameworks

Pedestrian risky behaviors are one of the contributing factors to crashes involving pedestrians. Therefore, it is crucial to comprehend the mechanisms by which pedestrians interact with many influential components in the traffic environment. This study aimed to evaluate pedestrians’ red light running intentions and related factors under different traffic flow scenarios, including straight traffic flow, right-turning traffic flow, and left-turning traffic flow. A theoretical approach based on the theory of planned behavior (TPB) and the prototype willingness model (PWM) was employed. Data were collected from an online survey of 2250 participants in Tehran, Iran. Structural equation modeling (SEM) was used to identify the significant factors that explain intentions. All models successfully explained the behavioral intention for red light running violation; however, the findings revealed that the integrated model was the best-performing model to represent violation and, thus, was selected for interpreting the results and drawing relevant conclusions. Different traffic flow scenarios had varied effects on violation intentions for individual characteristics and model constructs. Previous crash experiences and driving-related background variables emerged to impact pedestrian violation intention across three scenarios. The findings also suggested that the rational constructs (attitude, perceived behavioral control, and facilitating conditions) had a more robust impact on violation intention compared to reactive constructs (prototype similarity, prototype favorability), with facilitating conditions being the strongest predictor of the model, followed by attitudes toward violation as a significant predictor of intention for red light violation. According to the results, the mechanism of risk-taking varies depending on the direction of the traffic flow. Higher risk was associated with the violation at the intersections with straight traffic flow compared to the intersections with turning traffic flow. Based on the findings of this study, several implications, including interventions focusing on individuals’ transportation safety attitudes, countermeasures to increase the risk perception of pedestrians toward turning vehicles, and countermeasures regarding the use of mobile phones while walking for the context of this study were proposed.

Identification of Individual Mobility Anchor Places and Patterns Based on Mobile Phone GPS Data

The study on individual mobility patterns supports our better understanding of spatiotemporal characteristics of people’s travel behavior and social activities. The mobile phone GPS data are advantageous due to the large size of their data coverage. This paper aims to identify individual activity anchor places and to analyze related patterns based on the GPS data collected from thousands of mobile phone users over four months in Greater Paris, France. We propose a method to refine the identification of home and secondary activities. Based on this, the mobility spatial characteristics are aggregated by applying a three-stage clustering method. As a consequence, the clusters of activity types, the daily mobility patterns (day types), and the user groups with similar daily mobility patterns are obtained stage by stage. This allows us to analyze the obtained clusters in a cascading maneuver by three different levels: activity level, day level, and individual level. Inversely, the mobility characteristics per user group are interpreted with respect to the interpretation of day types and then activity types. From the interpretable clusters, it is facilitated for us to find the daily mobility differences by user groups across weekdays and weekends, transport modes, as well as the mobility variability over the study period.

Technology and Household Harmony: A Fiqhiyah Study on the Use of Mobile Phones in Marriage

This article examines the relationship between mobile phone use, household harmony, and fiqh perspectives. In this article, we will briefly explain the main points related to the use of mobile phones in marriage and how fiqh can be used as a framework to analyze this issue. This article discusses the use of mobile phones in marriage and its relationship with domestic harmony from a fiqh perspective. Highlighting concerns about the negative impact of mobile phone use on household harmony, the article also explains that responsible cell phone use can provide benefits in facilitating communication, strengthening the marriage bond, and accessing information that is beneficial to the relationship. However, excessive or inappropriate cell phone use can lead to harassment, partner abandonment, and the risk of infidelity. Therefore, this article also provides guidelines for responsible cell phone use in marriage, including setting boundaries, avoiding distractions at important moments together, and seeking professional help if needed. Further research on the impact of fiqh on mobile phone use in interpersonal relationships is also recommended.

Perspectives on barriers to traditional sources of sexual and reproductive health information and services: Are mHealth technologies the answer?

Background: In Ghana, several qualitative studies have explored users’ perspectives on conventional sources of sexual and reproductive health (SRH) information and factors which influence provision of and access in rural settings. However, there is a dearth of qualitative studies on healthcare provider (HCP) perspectives on factors that deter access to conventional sources of SRH information among young people in rural Ghana and innovative ways for addressing barriers. This study explored perspectives on barriers to traditional sources of SRH information and services and innovative ways of using mHealth technologies for addressing provision and access challenges among young people in rural Ghana. Methods: This study used a qualitative approach using in-depth interviews. Semi-structured in-depth interviews were conducted with HCPs in rural areas in three regions of Ghana between May and August 2021. Participants were selected from rural communities using the convenience snowball sampling and were interviewed via Zoom. The interviews explored the experiences and perceptions of HCPs on conventional SRH information and services and young people’s access to this information and services. The interviews were audio recorded and transcribed verbatim. Data were analysed thematically using NVivo software version 12, following the approach outlined by Braun and Clarke. Results: Twenty HCPs were interviewed for this study. The participants identified different sources of SRH information and services used by rural young people. Peers or friends, health facilities, health providers, and community settings were reported as the main services and sources of SRH information. Participants reported several barriers and challenges to the provision of and access to SRH information to young people, including socio-cultural norms, religious beliefs, unfriendly health facility environments, negative health providers’ attitudes, lack of privacy and confidentiality resulting in unfriendly youth SRH services, distance, and financial challenges due to costs of transportation which limits rural young people’s access to, and use of, SRH services. All the participants indicated that in addressing provision and access barriers, the use of mobile phones could be beneficial. Conclusion: This study highlights several barriers and challenges that deter provision of, and access to, SRH information and services for young people in rural Ghana. The findings indicate the use of innovative mobile health (mHealth) technologies may be one solution to some of the barriers and challenges.

Exploring the Microbiome of Mobile Devices: Implications for Public Health and Hygiene

This study, which examined the diversity of microorganisms found on mobile phones, took a novel approach by identifying pathogenic microbes on phone users within different age groups. The study also aimed to test the effectiveness of a simple disinfection method using 70% sterile alcohol pads. Samples were collected using sterile cotton tip applicators and transport broth media before and after disinfection. The samples were cultured and incubated on Muller Hinton agar petri plates at 32 degrees Celsius for 48 hours. The isolated microbes were identified based on their morphological characteristics, gram-stain test, and biochemical analysis. The survey, conducted to determine the frequency of mobile phone usage and factors contributing to microbial contamination, revealed significant findings. Participants from two villages were surveyed using a structured questionnaire. The sample size of participants was generated using a sample size calculator. Two participants from each age group per village were selected randomly for microbial sample collection from their mobile phones using R Studio software. The results showed that older adults' mobile phones were more contaminated than younger adults and adolescents, providing valuable insights. The frequency of usage and hygiene did not determine the total viable count of pathogenic microbes found, challenging existing assumptions. The study also found that disinfection using 70% sterile alcohol pads was 76% effective in reducing microbial contamination.

The role of digital device use on the risk of migraine: a univariable and multivariable Mendelian randomization study.

The pervasive integration of digital devices into daily life has raised concerns about their potential health impacts. This study aimed to explore the causal relationships between digital device use and the risk of migraine using Mendelian randomization (MR). Genetic data on digital device use and migraines were sourced from large-scale genome-wide association studies conducted by the UK Biobank, the FinnGen study, and the International Headache Genetics Consortium. Univariable MR (UVMR), meta-analysis, and multivariable MR (MVMR) approaches were conducted to explore and verify the causal effects of digital device use (including mobile phone use, computer use, playing computer games, and watching television) on migraine risk. Sensitivity analyses were conducted using Cochran's Q, MR-Egger intercept test, MR pleiotropy residual sum and outlier, MR Radial, MR Steiger, and leave-one-out methods. UVMR analyses revealed that genetically predicted mobile phone use was significantly associated with an increased risk of overall migraine (odds ratio [OR] = 2.39, p = 9.78e-5) and migraine without aura (MO) (OR = 2.25, p = 0.024). Additionally, there were significant positive associations between genetically predicted television watching and the risk of overall migraine (OR = 1.63, p = 2.12e-5) and MO (OR = 2.10, p = 4.98e-5). These results were further supported by the meta-analysis and MVMR analysis. Sensitivity analysis indicated no heterogeneity or pleiotropy. This comprehensive MR study provides preliminary evidence for the causal impact of mobile phone use and television watching on the risk of migraines. Further studies are needed to explore these associations across different populations.

Does Socioeconomic Status Moderate the Association Between Screen Time, Mobile Phone Use, Social Networks, Messaging Applications, and Mental Health Among Adolescents?

The aim of this study was to examine the relationship between different screen time (ST)-related behaviors and mental health conditions such as depression, anxiety, and stress. In addition, this study aimed to determine the moderating role of socioeconomic status (SES). This was a cross-sectional study and included data from 620 adolescents, aged 12-17 years, from the Valle de Ricote, Region of Murcia, Spain. Mental health was assessed using the Depression, Anxiety, and Stress Scale (DASS-21). Overall ST, mobile phone use, social network use, and messaging application use were measured using validated questionnaires. SES was assessed using the Family Affluence Scale-III. The results indicated that overall ST was significantly associated with symptoms of depression at the mean SES (unstandardized beta coefficient [B] = 0.005, p = 0.023) and 1 standard deviation (SD) below the mean (B = 0.007, p = 0.011), and with stress only 1 SD below the mean (B = 0.006, p = 0.011). No significant associations were found for anxiety and stress across all socioeconomic levels. Mobile phone use exhibited a strong positive association with symptoms of depression (B = 0.891, p < 0.001), anxiety (B = 0.530, p = 0.014), and stress (B = 0.790, p < 0.001) at 1 SD below the mean SES. Similar patterns were observed for mean SES, albeit with slightly weaker associations. Conversely, social network use was positively associated with all three DASS-21 scales, particularly at 1 SD below the mean SES, with the strongest associations found for symptoms of depression (B = 0.327, p < 0.001), anxiety (B = 0.325, p < 0.001), and stress (B = 0.318, p < 0.001). Furthermore, messaging application use did not show significant associations with symptoms of depression, anxiety, or stress across any SES levels. In conclusion, social inequalities may influence the associations between various ST-related behavior and symptoms of depression, anxiety, and stress among adolescents. These findings may have implications for the design of effective interventions to improve symptoms of depression, anxiety, and stress in this population.

The Phenomenon of School Dropouts in the Pujut, Mandalika SEZ: An Interpretive Phenomenological Analysis from the Perspective of Education Actors and Society

The development of the Mandalika Special Economic Zone (SEZ) in Pujut district, while driving economic growth, has raised concerns about declining school interest and high dropout rates among local students. This qualitative study, employing interpretive phenomenological methods, explores the experiences and perceptions of education actors, including the vice principal for student affairs, counseling guidance teachers, Mongge madrasah teachers, and the Head of Sukadana Village, to understand the underlying factors. Findings reveal economic constraints as a primary cause of dropout, with many students from low-income families unable to afford education. Early marriage, particularly among female students, is another significant factor influenced by economic, social, and cultural pressures. Additionally, broken homes, unsupportive social environments, the negative influence of social media, and a lack of motivation contribute to the problem. Schools have responded with counseling, parental engagement, and restrictions on mobile phone use. However, deeper issues like early marriage and broken homes necessitate broader interventions involving government policies and socio-cultural change. This research illuminates the complexity of school dropout in the Mandalika SEZ and highlights the need for a comprehensive approach engaging all stakeholders to ensure educational access and success for all students.

Analysis of traffic injury trends, and strategies for road safety promotion in Lithuania

Abstract Every year, about 1.3 million people die on the world’s roads. The aim of the study was to analyze the mortality trends from traffic injuries, and to discuss strategies for the prevention of road traffic injuries and road safety promotion in Lithuania. A longitudinal study was conducted, and regression analysis was applied. The study showed that, when analyzing the changes in mortality from the main causes of death over 2009-2019, the greatest progress in mortality reduction was observed in the category of deaths from external causes; whereas, the number of deaths from diseases of the circulatory system did not change, and the number of deaths from malignant tumors increased slightly. In Lithuania, the death rate from traffic injuries per 100,000 inhabitants decreased significantly over a 50-year period (1971-2020) (in the whole population, and in the subgroups of men and women). In Lithuania, during the fifty-year period (1971-2020), pedestrian mortality rates decreased significantly in the whole population, and children and adolescents (0-14, 15-19, and 0-19 years). Over 1998-2020, road traffic injury deaths decreased significantly in children age groups 0-14, 15-19, and 0-19. After exploring the preventive strategies used for road safety promotion, it was revealed that the most effective results were achieved, when education, safe environment creation, and legislation with enforcement were used. It was important to create a safe engineering environment, to separate pedestrian and bicycle paths from high-speed traffic on roads, to improve the visibility of road users, to apply measures that reduce driver’s fatigue, and to combat the usage of mobile phones while driving. Preventive activities were aimed at alcohol control, speed limitation, education of safe behavior of drivers, promotion of safe cars operation. The usage of safety belts and safety seats, helmets for motorcyclists and cyclists were increased through legislative and educational measures.

Prevalence and Factors of Pregnancy Termination Among Reproductive-Aged Women: Evidence from the Bangladesh Demographic and Health Survey.

Pregnancy termination (PT) is a major public health concern in low-and middle-income countries like Bangladesh. This cross-sectional study aimed to determine the prevalence and factors of PT using the nationally representative Bangladesh Demographic and Health Survey data 2017-2018. A weighted population-based sample of 8759 ever-married reproductive-aged women (15-49 years) was included in the study. The outcome variable was PT in any of the following forms: miscarriage, induced abortion, and stillbirth. A univariate analysis for mean, frequency, and percentage and multiple logistical regression were used to determine the factors associated with PT. Around 18% of the women were found to have PT. The mean age of the women in the study was 25.79 years; 65.1% lived in the rural areas, and the majority of them were Muslims. Advanced age of the women (AOR:3.49, p = 0.004), residence in the countryside (AOR:0.81, p = 0.002), higher education (AOR:0.72, p = 0.027), not being a Muslim (AOR:0.74, p = 0.010), higher socio-economic status (AOR:1.28, p = 0.027), having a job (AOR:1.15, p = 0.041), being married at the age of >22 years (AOR:0.71, p = 0.036), and using a mobile phone (AOR:1.22, p = 0.002) were significant factors of PT. This study did not find any association between PT and contraceptive use. Age, living region, education, religion, wealth index, working status, marital age, and mobile phone use are the determinants of PT. Interventions including these factors need to be made to reduce PT in Bangladeshi women. These findings could be helpful in undertaking further epidemiological studies to understand the actual causes of PT in various rural and urban settings among different socio-demographic groups in Bangladesh.

Effect of Electromagnetic-Radiofrequency Devices on Male Infertility at Urban Private Infertility Clinics in East Java

Background: As technology becomes increasingly integrated into urban lifestyles, the use of mobile phones, laptops/computers, and WiFi has surged, reshaping habits and routines. However, this reliance on devices raises concerns about potential health impacts, including male infertility rates. This study explores how lifestyle factors, particularly mobile phone usage and exposure to electromagnetic radiation (EMR) and radio frequencies (RF), influence male infertility. Methods: Conducted in Surabaya, Indonesia, this study analyzed sperm analysis data from 260 husbands attending private infertility clinics. Data spanning 2018 to 2023 were collected, with interviews conducted to assess EMR-RF exposure. Statistical analysis using the Mann-Whitney test evaluated differences in sperm analysis results between groups exposed to EMR-RF and controls. Results: A notable prevalence of EMR-RF exposure was observed among men aged 31-40, particularly those working indoors. Significant associations were found between EMR-RF exposure and sperm analysis results, with key factors such as mobile phone usage duration, storage practices, and WiFi exposure showing statistically significant correlations (p &lt; 0.05). Conclusion: This study highlights the impact of EMR-RF exposure on male fertility, particularly concerning mobile phone use and WiFi exposure. These findings underscore the importance of further research and potential interventions to mitigate the health risks associated with EMR-RF exposure in urban populations.

Caught between autonomy and control: How Liberian teenagers perceive and navigate parental mediation of their mobile phone use

ABSTRACT Mobile phones play a central role in the lives of teenagers living in West Africa, but to date we have limited knowledge of how these teenagers perceive and navigate parental mediation of their phone use. This is unfortunate because such knowledge could inform about the interplay between culture, parenting, and children’s media use across cultures. To broaden our understanding of parental mediation in West Africa, this study interviewed 37 Liberian teenagers about the parental mediation strategies of their parents and investigated how these teenagers respond to parental mediation. The findings reveal two main mediation strategies: restrictive mediation and monitoring. Although these strategies are also used in the Global North, Liberian parents’ authoritarian application of these strategies as reported by our participants is different. Our findings further reveal a boomerang effect, because teenagers enact novel, mobile phone practices to circumvent parental mediation. These practices and the theoretical and practical implications of the study are discussed.