A meta-analytic study of predictors of anger in adolescents.

Background: There is a vast body of empirical work on adolescent anger, but no efforts have been made to summarize findings across nonintervention studies.

Objectives: The aims of this study were to identify predictors for anger in adolescents through a comprehensive review of the literature, to use quantitative meta-analysis to determine the magnitude of the relationship between each predictor and anger, and to examine the influence of selected moderators on the relationship between each predictor and anger.

Method: The literature review included 288 published studies and 87 unpublished doctoral dissertation completed between 1980 and 2007, of which 88 met the inclusion criteria.

Perceived stress and wellness in early adolescents using the Neuman Systems Model.

The purpose of this study was to examine the relationship between perceived stress and wellness in early adolescents and to test primary appraisal as a mediator of this relationship using the Neuman Systems Model as the primary framework. The sample consisted of 144 adolescents, ages 12-14, who responded to instruments measuring perceived stress, primary appraisal, and wellness in classroom settings. Correlational analysis supported the three hypothesized relationships.

A meta-analytic study of predictors of maternal-fetal attachment.

Objectives: To identify predictors of maternal-fetal attachment (MFA) through a comprehensive review of the literature, and to use quantitative meta-analysis to determine the magnitude of the relationship between each predictor and MFA.

Design: The literature reviewed included 183 studies of MFA, published and unpublished, between 1981 and 2006.

Methods: Seventy-two studies met the inclusion criteria and yielded 14 predictors of MFA.

Psychometric evaluation of the interpersonal relationship inventory for early adolescents.

The purposes of this methodological study were to factor analyze the short form of the Tilden Interpersonal Relationship Inventory (IPRI) for early adolescents, and to assess construct validity of the social support and conflict subscales with early adolescents. The sample consisted of 147 early adolescents, aged 12-14, who completed instrument packets in classrooms in a suburban middle school. Data obtained on the IPRI were subjected to principal components factor analysis with Varimax rotation.

Mediational models of health practices in early adolescents.

The purpose of this study was to examine the relationship between social support and positive health practices in early adolescents and to test two variables, depression and optimism, that mediate this relationship. The final sample included 128 adolescents, ages 12 to 14, who responded to instruments measuring social support, depression, optimism, and positive health practices in classroom settings. Correlational analysis supported the five hypothesized relationships.

Relations of low frustration tolerance beliefs with stress, depression, and anxiety in young adolescents.

Young adolescents (N=144; 66 boys, 78 girls), ages 12 to 14 years (M=12.2, SD=.8), who reported lower scores on the Low Frustration Tolerance Beliefs Instrument had higher scores on the Perceived Stress Scale and the Profile of Mood States Subscales of Depression and Anxiety.

Correlates of low frustration tolerance in young adolescents.

148 young adolescents who reported low frustration tolerance also reported more trait anger, state anger, and hostility.

A meta-analytic study of predictors for loneliness during adolescence.

Background: Extensive research has been completed to investigate loneliness in adolescents over the past several decades; identification of key predictors for loneliness was needed using meta-analytic techniques.

Objectives: To identify predictors for loneliness in adolescents through a comprehensive review of the literature and to use quantitative meta-analysis to determine the magnitude of the relationships between each predictor and loneliness.

Methods: The literature reviewed included 242 studies published or unpublished between 1980 and 2004, of which 95 met the inclusion criteria.