Department of Psychology

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Author: search.filters.author.Dr. Shameem FatimaEnd date: 2019

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    Cognitive Control and Decision Making among Adults: The Role of Aging
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2018) Manoor Khan; SP14-BPSY-013; Dr. Shameem Fatima; LHR TP 5405
    The purpose of the current study was to evaluate the direct and indirect relationship between aging, cognitive control and decision making, and to assess whether age moderates the relationship between cognitive control and decision making styles. To conduct the study, a sample of 195 adults, ranging in age from 30-59 years, were selected from different institutions and organizations of the Lahore city. It was hypothesized that there would be significant relationships between age, cognitive control, and decision-making styles. It was also hypothesized that there would be significant relationship between age and decision-making styles in adults. Additionally, it was hypothesized that cognitive control would mediate the association between age and decision-making styles. Moreover, it was also hypothesized that age would moderate the relationship between cognitive control and decision-making styles. The convenient sampling technique was used to approach the participants. DKEFS Color Word Interference test, and Design Fluency Test (Delis, Kaplan, & Krammer, 2001), General Decision Making Style Inventory (Scott,& Bruce, 1995) were used to assess the level of cognitive control, and the styles of decision making respectively. Pearson product movement correlation and moderated mediation analyses were used to test study hypotheses. The Results showed that age and cognitive control were positively correlated with rational and spontaneous decision-making styles, while negatively correlated with dependent and avoidant decision-making styles. Findings from mediation analyses indicated that cognitive control as assessed from CWIT measure mediated the relationship between age and dependent, avoidant, and spontaneous decision-making styles, while cognitive control as assessed from DFT mediated the link of age with dependent and avoidant decision making styles. Finally, moderation analyses indicated that cognitive control was more strongly correlated with dependent, avoidant, and spontaneous decision making styles among older adults as compared to middle adults. Limitations, implications, and future directions of the current study were discussed
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    SLEEP DISTURBANCE, EATING HABITS, COGNITIVE CONTROL, AND AGGRESSION IN ADOLESCENTS
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2018) TAYYABA ATHAR; FA14-BPSY-001; Dr. Shameem Fatima
    The purpose of the current study was to investigate the direct and mediated relationship between sleep disturbance, healthy food habits, cognitive control, and aggression in adolescents. It was hypothesized that sleep disturbance would have a positive relationship with aggression and healthy food habits would have a negative relationship with aggression. A secondary hypothesis was formulated that cognitive control would mediate the relationship of sleep disturbance and food habits with aggression. To conduct the study, a correlational research design was used. The sample of the study comprised of 157 adolescents in age range of 12-18 years; they were selected from secondary and higher secondary grades from different private and government schools and colleges of Lahore. The sample were selected through cluster random sampling technique. The Adolescent Food Habits Checklist, Pittsburgh Sleep Quality Index (PSQI), Color word interference test taken from Delis Kaplan Executive functions system (D-KEFS; Delis, Kaplan, & Kramer, 2001), and Aggression Scale (Mathur & Bhatnagar, 2004) were used to assess the healthy food habits, sleep disturbance, level of cognitive control, and the level of aggression respectively. Pearson product movement correlation analysis and mediation model using Baron and Kenny’s guidelines were calculated to assess study objectives. The results showed that sleep disturbance were positively correlated with aggression and healthy food habits were negatively correlated with aggression. Moreover, the healthy food habits were negatively correlated with error measure of cognitive control (more errors represented poor cognitive control). Furthermore, the findings indicated that cognitive control (error measure) mediated the link between healthy food habits and aggression (Soble z test = -1.74, p <.05). Limitations, implications, and future directions of the current study were discussed.