Ph.D Theses

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Browsing Ph.D Theses by Subject "Counselling Psychology"

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    Management of Test Anxiety and Stress among Nursing Students through Cognitive Behaviour Therapy
    (Avinashilingam, 2023-12) Lethika K; Dr. N.V. Amudha Devi
    In the recent years, there has been a growing interest to utilise the precision nutrition approach for the prevention, management and treatment of obesity, which takes into consideration the interaction between food and the human and microbial genome. It is quite evident that awareness and popularity about genetic testing for personalised nutrition is gaining momentum. Consumer attitudes and perceptions towards genetic testing to determine the risks of a predisposition to various diseases have already been examined by several studies, consumer acceptance of personalised nutrition have not been studied in the Indian population till date. In phase one of the study, Consumer acceptance of genetic testing and the responses towards perceived advantages of receiving DNA based dietary advice were ease of understanding and specificity of the diet advice, which was the most frequently reported theme (57.5%), followed by more personalised and enjoyable (22.4%) and reduced costs due to disease prevention (20.1%). The study concluded that individuals were optimistic and perceived many advantages of nutrigenetic testing. The study populations was optimistic and were willing to adopt genetic tests for personalised nutrition recommendations. In phase two of the study, we compared the differences in anthropometric measurements, dietary intake and dietary adherence among standard generic dietary advice, personalized nutrition advice based on nutrigenetic variations and the precision nutrition advice based on nutrigenetic variations and gut microbiome profiling. A statistically significant increase in the Bacteroidetes genus was observed in the personalized nutrition group (p = .04). The change (delta) values in gut microbiome composition in personalized nutrition group were significantly higher at the end of 90 days. Gut microbiome-based personalized microbiome modulation through diet significantly improves gut microbiome profiles among obese individuals. Further need studies are needed with larger sample size to validate these study findings and long-term follow-up.
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    Positive Psychology Constructs: Development and Measurement
    (Avinashilingam, 2023-11) Sudha R; Dr. S. Gayatridevi
    The present study examines the factor structure of the C. A. R. E Inventory. This psychological assessment tool was developed by the researcher in response to the COVID pandemic when there was a lacuna of locally developed assessment tools to assess positivity and hence develop such positive psychology constructs for empirical assessment. After ethical approval, items were generated based on a survey of 2780 adults on the specific positive psychology constructs necessary during the present pandemic scenario and its aftermath. The participants gave the maximum rating for four main positive psychology constructs based on which the acronym C. A. R. E. was devised where: C: stands for Compassion and Self-Compassion A: stands for Achieving a Purpose in Life R: stands for Relationship Building E: stands for Enhancing Positive Emotions Following this, items were generated and subjected to content validity with subject experts and stakeholders. After establishing the required content validity ratio, normality assessments were conducted followed by exploratory and confirmatory factor analysis for a final sample of 862 adults. CFA models reveal that the 36 item C. A. R. E Inventory has sufficient model fit indices, namely the normed chi-square (3.68), Comparative Fit Index (CFI=0.943), Incremental Fit Index (IFI=0.943), Tucker-Lewis Index (TLI=0.939), Normed Fit Index (NFI=0.924), and Relative Fit index (RFI=0.918), all above 0.9, indicating good model fit. Root Mean Square Error of Approximation (RMSEA) value of 0.056 and a Standardized Root Mean Squared Residual (SRMR) value of 0.0295, all of them indicate a good fit for the model. All items had a factor loading of above 0.70. This psychological tool is hence ready for use globally as it has no culturally biased items. Moreover, an intervention module with the name C. A. R. E Intervention Module, an activity-based intervention aimed to improve the four aforesaid constructs is also developed and validated using four randomized control trial experiments. Keywords: C. A. R. E inventory, C. A. R. E intervention module, positive psychology, factor analysis model