Depression is an increasingly common health problem among youth. There is growing empirical evidence that CBT is a promising treatment for childhood depression. It remains unclear what treatment-specific effects of CBT contribute to therapeutic gains. Cognitive theories propose that a primary mechanism of change in CBT are cognitive interventions that target depressogenic cognitions regarding the self, world, and future (cognitive triad), which are thought to mediate depression. The effects of cognitive interventions on depressive symptoms are thus hypothesized to be mediated by changes in the cognitive triad. No studies have investigated whether CBT for depressed youth works by treating the cognitive triad through the implementation of cognitive techniques. As part of a larger study analyzing the mechanisms of change in CBT for depressed youth, the purpose of this study was to investigate: (1) whether specific cognitive techniques are related to depressive symptom reduction in youth, and (2) if improvements in depressive symptoms are mediated through the cognitive triad of depressed youth. Participants were 42 girls, aged 8 to 14, who completed a manualized CBT protocol for depression in group format. Girls completed a diagnostic interview for depression and self-report measures assessing the cognitive triad. Group therapy sessions were coded for cognitive interventions. Results indicated a non-significant relation between levels of cognitive interventions and post-treatment depression scores, after controlling for pre-treatment depression. Therefore, tests of mediation were discontinued. Relevant control variables were added to the model to reduce error variance. After controlling for pre-treatment depression, age, presence of learning disorder, mastery of therapeutic skills, and behavioral interventions, cognitive interventions were significantly and positively associated with post-treatment depression. The relation between cognitive interventions and the cognitive triad was non-significant and meditational analyses were discontinued. Exploratory factor analysis revealed four cognitive interventions factors that were consistent with CBT theory. Further analyses revealed that all factors were not significantly related to post-treatment depression. Tests of interactions between cognitive interventions and behavioral interventions, age, and mastery level of therapeutic skills were also non-significant. Implications, limitations, and recommendations for further areas of research are presented. / text

Physical activity (PA) has been labelled the miracle drug (Pimlott, 2010) and participating in regular PA has ample physical and mental wellbeing benefits. However, physical inactivity remains a critical public health concern, particularly across adolescence. In England the proportion of adolescents aged 13-15 years meeting the recommended guidelines for PA decreased significantly from those at a younger age (Health and Social Care Information Centre, 2009; 2012; 2015). The adolescent years (13 18 years) have been identified as the age of greatest decline in PA, although it is possible that large declines can also be seen at younger ages (Sallis, 2000). Among girls the decline in PA is greater at younger ages (9 12 years old) and among boys it is greater at older ages (13 16 years old) (Dumith, Gigante, Domingues, & Kohl, 2011). Thus, examining behaviour of early adolescents (aged 11-13 years) is a primary focus of this thesis. Researchers have called for a more comprehensive grasp of PA correlates and determinants and their impact on behaviour (Biddle & Mutrie, 2001, 2008). This broader picture needs to incorporate longitudinal study designs to accurately portray developmental changes (Evenson & Mota, 2011). This thesis aims to work towards a better understanding of associations among variables across aspects of the ecological model in relation to PA behaviour during early adolescence. Early adolescents within their first year of secondary school (year 7, aged 11 12 years) were recruited through schools across the East Midlands, United Kingdom (UK). These participants completed various measures across an 18 month period to compile all data required for the thesis. The thesis begins with a focus on active transport as a means of commuting to school which can significantly contribute to overall PA levels (Aibar, Bois, Generelo, Bengoechea, & Paillard, 2015; Slingerland, Borghouts, & Hesselink, 2012). The distance from home to school is an important influence on the decision to use active transport; however, ecological perspectives would suggest this variable may interact with individual, interpersonal and environmental factors. Therefore, the first study of this thesis investigates whether the relationship between distance to school and active transport is moderated by (i) gender, (ii) biological maturation, (iii) perceived family support for PA and (iv) multiple deprivation. Cross-sectional results from the baseline data collected demonstrated that the relationship between distance to school and the likelihood to actively travel to school is moderated by biological maturation, multiple deprivation and family support of PA in adolescents. Further analysis revealed that late-maturing children, those from less socio-economically deprived backgrounds and children with low family support of PA are less likely to actively commute to school as distance to school increases. Due to the interaction between these variables described above, the second study focused on the variables collectively using a person-oriented approach, which aimed to classify distinct profiles of early adolescents based on correlates of PA. The outcome variables were also broadened to include active transport and overall PA across two time points. Findings from this second study illustrate that the highly supported, shortest commuters produced the highest levels of self-reported PA and that affluent, short commuters were the most likely to use active transport to travel to school. The affluent, short commuters lived a relatively short distance to school in areas of the lowest deprivation and had relative moderate family support of PA. The highly supported, shortest commuters were characterised by the highest family support of PA and lived the shortest distance to school in areas of low deprivation. Study 1 evidenced an association between biological maturation and PA behaviour; however, study 2 displayed that biological maturation did not meaningfully contribute to the class characteristics, and were not a predictor of PA. Previous evidence as to whether early, average or late maturing adolescents are more likely to disengage from PA is mixed and tends to focus on one gender only (Sherar, Cumming, Eisenmann, Baxter-Jones, & Malina 2010; Bacil, Mazzardo, Rech, Legnani, & Campos, 2015). Thus for the third study a more focused inspection of biological maturity was undertaken. Biological maturity status was investigated as a predictor of PA behaviour at two subsequent time points (6 9 months after baseline and 12 18 months after baseline) and whether there was variation across genders. Findings displayed that biological maturity status does not predict subsequent PA, with no distinction across genders. To conclude, the final study examined additional forms of PA behaviour. For children to develop and maintain healthy PA behaviours, their PA during the school day, particularly during physical education (P.E) classes is important (Owen, Smith, Lubans, Ng, & Lonsdale, 2014). Self-reported PA was divided into school-time PA (during P.E. lessons, break and lunchtimes) and leisure-time PA (after school, during evenings and weekends). The final study fully utilised the longitudinal data collected and utilised longitudinal growth modelling to describe the changes in PA behaviour across 12-18 months during early adolescence. Results displayed that school-time PA and leisure-time PA are distinct. Males; those from less deprived backgrounds and individuals with higher family support of PA all separately reported more school-time PA than their counterparts (females, those from higher deprived backgrounds and individuals with lower family support of PA) at baseline. Males and those with higher family support of PA also reported more leisure-time PA than their respective counterparts at baseline. On average, both genders decreased in school-time PA across 18 months yet for leisure-time PA, on average, there was no change over time and no significant difference in the rate of change between genders. There were no observed significant differences in the rate of change between multiple deprivation status and biological maturation across the 18 months for both behaviours. For family support, on average school-time PA decreased over time and results showed significant difference in the rate of change between individuals with lower or higher levels of family support of PA across the 18 months. On average, there was no change over time for leisure-time PA yet there was a significant difference in the rate of change between individuals and their family support of PA across 18 months. Further analysis demonstrated if an individual s family support increases, so does their leisure-time PA and vice versa. These overall key findings demonstrate the complexity of PA behaviour throughout early adolescence. This thesis works towards predicting individuals, correlates and determinants that may be susceptible to physical inactivity and/or a decrease in activity over time. Results can be used to target and direct PA intervention work.

Early adolescent girls in a private school setting are in a vulnerable state on account of their gender, transitional developmental phase and a combined array of modern-day expectations and challenges. With many private schools expecting a 100% pass rate from their students, issues of competitiveness and achievement pressure may become prevalent. Research has shown that early adolescent girls are more susceptible to psychosocial problems than boys as well as girls of other ages, putting them more at risk of the effects of performance pressure, academic stress, depression and anxiety. Early adolescent girls’ vulnerability due to the impact that puberty has on their self-esteem as well as the fact that they are easily influenced by the opinions of others, causing them to be highly sensitive to the approval of others, may be compounded by pressures of the private school. The purpose and aim of this study was therefore to explore and describe the lived experiences of early adolescent girls in a private school setting so as to gain a deeper understanding of such experiences. In following this it was hoped that the study would offer the girls a ‘voice’ as well as create awareness of how they can be better supported in terms of their psychosocial development and well-being. The study was not viewed from one specific theoretical perspective but rather took into consideration various theories of development while undertaking the literature review, in order to gain a broader orientation of the subject at hand. The current literature with regard to the key concepts of the study formed part of the overview of the study. A qualitative approach was followed so as to understand the unique, true meaning of the girls’ experiences. A case study design allowed for a holistic, in-depth study of the social phenomenon at hand. The participants were ten early adolescent girls in Grade 7 in a private school in Northern Johannesburg who volunteered to take part in the study with the informed consent of their parents. The data obtained were viewed in line with an interpretive descriptive paradigm, which allowed the phenomenon to be studied through a ‘subjective lens’ while allowing for the formation of various realities. A deeper understanding of such realities in terms of the girls’ interpretations of their lived experiences was obtained through the data collection methods of semi-structured in-depth interviews, collages, confidential letters, journal Psychosocial experiences of early adolescent girls in a private school setting entries, field notes and researcher reflective notes. In combination with the researcher’s interpretation, this led to a richer, co-constructed, description of the girls’ experiences. The interpretive description allowed for the emergence of thematic patterns which revealed the findings of the study. The findings confirm that the girls are experiencing pressure to attain and maintain the high standard of the school. The findings further confirm that such pressures are increased by the early adolescent girls’ vulnerable developmental phase which places them in need of greater positive support from teachers, peers and parents to maintain healthy psychosocial development. The findings show that perceived rejection from peers and teachers has a negative effect on the girls’ self-concept. The findings further reveal that in considering the girls’ well-being they should be given a voice and be respected in their authentic uniqueness. Recommendations were made for the school to investigate the establishment of ‘mindfulness workshops’ to be run at the school, with the outcome that parents, teachers and students further develop skills in ways of supporting the girls’ healthy psychosocial development. / Thesis (MA (Psychology))--North-West University, Potchefstroom Campus, 2013.

Early adolescent girls in a private school setting are in a vulnerable state on account of their gender, transitional developmental phase and a combined array of modern-day expectations and challenges. With many private schools expecting a 100% pass rate from their students, issues of competitiveness and achievement pressure may become prevalent. Research has shown that early adolescent girls are more susceptible to psychosocial problems than boys as well as girls of other ages, putting them more at risk of the effects of performance pressure, academic stress, depression and anxiety. Early adolescent girls’ vulnerability due to the impact that puberty has on their self-esteem as well as the fact that they are easily influenced by the opinions of others, causing them to be highly sensitive to the approval of others, may be compounded by pressures of the private school. The purpose and aim of this study was therefore to explore and describe the lived experiences of early adolescent girls in a private school setting so as to gain a deeper understanding of such experiences. In following this it was hoped that the study would offer the girls a ‘voice’ as well as create awareness of how they can be better supported in terms of their psychosocial development and well-being. The study was not viewed from one specific theoretical perspective but rather took into consideration various theories of development while undertaking the literature review, in order to gain a broader orientation of the subject at hand. The current literature with regard to the key concepts of the study formed part of the overview of the study. A qualitative approach was followed so as to understand the unique, true meaning of the girls’ experiences. A case study design allowed for a holistic, in-depth study of the social phenomenon at hand. The participants were ten early adolescent girls in Grade 7 in a private school in Northern Johannesburg who volunteered to take part in the study with the informed consent of their parents. The data obtained were viewed in line with an interpretive descriptive paradigm, which allowed the phenomenon to be studied through a ‘subjective lens’ while allowing for the formation of various realities. A deeper understanding of such realities in terms of the girls’ interpretations of their lived experiences was obtained through the data collection methods of semi-structured in-depth interviews, collages, confidential letters, journal Psychosocial experiences of early adolescent girls in a private school setting entries, field notes and researcher reflective notes. In combination with the researcher’s interpretation, this led to a richer, co-constructed, description of the girls’ experiences. The interpretive description allowed for the emergence of thematic patterns which revealed the findings of the study. The findings confirm that the girls are experiencing pressure to attain and maintain the high standard of the school. The findings further confirm that such pressures are increased by the early adolescent girls’ vulnerable developmental phase which places them in need of greater positive support from teachers, peers and parents to maintain healthy psychosocial development. The findings show that perceived rejection from peers and teachers has a negative effect on the girls’ self-concept. The findings further reveal that in considering the girls’ well-being they should be given a voice and be respected in their authentic uniqueness. Recommendations were made for the school to investigate the establishment of ‘mindfulness workshops’ to be run at the school, with the outcome that parents, teachers and students further develop skills in ways of supporting the girls’ healthy psychosocial development. / Thesis (MA (Psychology))--North-West University, Potchefstroom Campus, 2013.

This study examined the nature and prevalence of ego strength among early adolescent learners in grade nine attending an independent school. An in-depth literature review was conducted in order to explore the role and theories of ego development. Thereafter, theories and key aspects of various dimensions of adolescent development were highlighted. The empirical investigation included both quantitative and qualitative research methodology. A questionnaire was administered to one hundred and ten grade nine learners in order to obtain a broad measure of the respondents' ego and superego strength. Thereafter, two learners were selected in order to explore their experiential life worlds. The findings of the empirical investigation were compared with information that emerged from the literature study. The study was concluded by offering recommendations to parents, educators and professionals working in the field of psychology of education in empowering them in addressing the phenomenon of ego development among early adolescent learners. / Educational Studies / M. Ed. (Guidance and Counselling)

This study examined the nature and prevalence of ego strength among early adolescent learners in grade nine attending an independent school. An in-depth literature review was conducted in order to explore the role and theories of ego development. Thereafter, theories and key aspects of various dimensions of adolescent development were highlighted. The empirical investigation included both quantitative and qualitative research methodology. A questionnaire was administered to one hundred and ten grade nine learners in order to obtain a broad measure of the respondents' ego and superego strength. Thereafter, two learners were selected in order to explore their experiential life worlds. The findings of the empirical investigation were compared with information that emerged from the literature study. The study was concluded by offering recommendations to parents, educators and professionals working in the field of psychology of education in empowering them in addressing the phenomenon of ego development among early adolescent learners. / Educational Studies / M. Ed. (Guidance and Counselling)

The aim of the study is to do qualitative research with the help of phenomenological strategy on the effect of cell phone use on the peer group relationships of early adolescents within the framework of the systems theory. The population existed of early adolescents aged between 13 and 15 years old in grades 8 and 9. Information was initially obtained through a written assignment where by the early adolescents described their cell phone use and their relationships with their peers. Thereafter three focus group discussions were held to obtain data saturation. Data was then thematically analysed and five themes with categories were identified. Findings and deductions were made regarding the cell phone as communication medium and the importance of the cell phone for the early adolescent, as well as with regard to the effect the cell phone may have on peer group relations. Lastly it is indicated that the cell phone can also be employed as a instrument of recreation within the context of the cell phone and peer group relations. It is concluded that cell phone use has an effect on peer group relations. Early adolescents find a real opportunity to exercise their social skills with their peer group through the cell phone as medium. Regarding this research done with these specific early adolescents, the study concludes that the cell phone has a positive influence on peer group relations as it creates a feeling of “belonging” amongst them. / MA (Psychology), North-West University, Potchefstroom Campus, 2014

This study focuses on the strengths of early adolescents after losing a parent to suicide. Strengths is a global phenomenon and yet little research has been undertaken in South Africa pertaining to strengths in early adolescence. The goal of the study was to determine how the early adolescent experiences the suicidal death of a parent while simultaneously going through puberty, and what strengths were present to help them make meaning out of what happened in their lives. The research was conducted through a phenomenological design and followed a qualitative research approach within an interpretivist paradigm. The research design and approach allowed the participants to give meaning to the construct by sharing their own experiences. A total of 6 early adolescent girls from the ages of twelve to sixteen years were purposefully selected from the East Rand area, Gauteng. Five of the girls were Afrikaans speaking and one was English speaking. Three of the girls lost a mother to suicide and three of the girls lost a father to suicide. The qualitative data was collected in the form of individual in-depth interviews with the early adolescents. The interviews were voice recorded, transcribed and typed out by online transcribers. The raw data was checked by the researcher for accuracy and categorised to ascertain certain emerging themes. Thematic data analysis was used to transform the transcribed data into meaningful information. Principles and strategies to increase the trustworthiness of the data were done through a process of crystallisation. The researcher's objective was to understand and interpret the meanings the participants gave to their own experiences, to identify the strengths that emerged and make findings available to professionals and parents. The findings of the study revealed that early adolescents do present with certain strengths of an intrapersonal nature that assisted and support them through the grief and bereavement process after the suicide of a parent. / MA (Psychology), North-West University, Potchefstroom Campus, 2014

The aim of the study is to do qualitative research with the help of phenomenological strategy on the effect of cell phone use on the peer group relationships of early adolescents within the framework of the systems theory. The population existed of early adolescents aged between 13 and 15 years old in grades 8 and 9. Information was initially obtained through a written assignment where by the early adolescents described their cell phone use and their relationships with their peers. Thereafter three focus group discussions were held to obtain data saturation. Data was then thematically analysed and five themes with categories were identified. Findings and deductions were made regarding the cell phone as communication medium and the importance of the cell phone for the early adolescent, as well as with regard to the effect the cell phone may have on peer group relations. Lastly it is indicated that the cell phone can also be employed as a instrument of recreation within the context of the cell phone and peer group relations. It is concluded that cell phone use has an effect on peer group relations. Early adolescents find a real opportunity to exercise their social skills with their peer group through the cell phone as medium. Regarding this research done with these specific early adolescents, the study concludes that the cell phone has a positive influence on peer group relations as it creates a feeling of “belonging” amongst them. / MA (Psychology), North-West University, Potchefstroom Campus, 2014

This study focuses on the strengths of early adolescents after losing a parent to suicide. Strengths is a global phenomenon and yet little research has been undertaken in South Africa pertaining to strengths in early adolescence. The goal of the study was to determine how the early adolescent experiences the suicidal death of a parent while simultaneously going through puberty, and what strengths were present to help them make meaning out of what happened in their lives. The research was conducted through a phenomenological design and followed a qualitative research approach within an interpretivist paradigm. The research design and approach allowed the participants to give meaning to the construct by sharing their own experiences. A total of 6 early adolescent girls from the ages of twelve to sixteen years were purposefully selected from the East Rand area, Gauteng. Five of the girls were Afrikaans speaking and one was English speaking. Three of the girls lost a mother to suicide and three of the girls lost a father to suicide. The qualitative data was collected in the form of individual in-depth interviews with the early adolescents. The interviews were voice recorded, transcribed and typed out by online transcribers. The raw data was checked by the researcher for accuracy and categorised to ascertain certain emerging themes. Thematic data analysis was used to transform the transcribed data into meaningful information. Principles and strategies to increase the trustworthiness of the data were done through a process of crystallisation. The researcher's objective was to understand and interpret the meanings the participants gave to their own experiences, to identify the strengths that emerged and make findings available to professionals and parents. The findings of the study revealed that early adolescents do present with certain strengths of an intrapersonal nature that assisted and support them through the grief and bereavement process after the suicide of a parent. / MA (Psychology), North-West University, Potchefstroom Campus, 2014