UGC NTA NET/JRF Exam, Social Medicine & Community Health, February-2023

The answer can depend on the context and specificity of the question. A. Pretest - It refers to testing a questionnaire on a small sample of respondents before it's rolled out on a larger scale.

This can identify problems with questions, such as ambiguities or misunderstandings. B. Pilot study - This is a small-scale preliminary study conducted to evaluate feasibility, time, cost, adverse events, and effect size in an attempt to predict an appropriate sample size and improve upon the study design prior to performance of a full-scale research project.

If you're trying to formulate items in an area where literature is scant, a pilot study can certainly be a valuable tool to see if your initial ideas have merit and how they might be refined.

C. Delphi technique - This is a forecasting process framework based on the results of multiple rounds of questionnaires sent to a panel of experts. Several iterations of questionnaires

are sent out, and the anonymous responses are aggregated and shared with the group after each round. It's particularly useful when you want to get a consensus view from experts in an area where there's little existing literature.

D. Brainstorming - This is an informal way of generating ideas within a group. Given a direct interpretation of the question, formulating items in a research area where literature is inadequate would best be served by first determining what those items might be.

A pilot study (option B) is a sensible approach because it allows researchers to evaluate the feasibility of the research items or concepts on a small scale before committing to a more extensive study.

The term most commonly used in the context of family planning and contraception for couples in which the wife is in the reproductive age group is: B. Eligible couple.

The term "eligible couple" is typically used in family planning programs, especially in countries like India, to describe couples where the wife is in the reproductive age group (commonly considered as ages 15-49) and they are thus "eligible" for contraceptive use and family planning services.

"Target couple" is not a standard term used in this context in the same way "eligible couple" is. Thus, while "eligible couple" is the more accepted and specific term for this context, but both A and B could be considered correct.

An "Impounding reservoir" is best described as an artificial lake where large quantities of surface water are stored.

It is created by constructing a dam across a river or stream to store the water flow for various purposes such as power generation, irrigation, and water supply.

The water level in such a reservoir can be managed and controlled according to requirements.

The concentration of dissolved oxygen (DO) in a water sample is crucial for aquatic life. High levels of pollutants in the water, especially organic matter, can increase the rate of oxygen consumption as it decays.

As microorganisms break down these pollutants, they consume oxygen in the process. Therefore, a reduction in the level of dissolved oxygen can be an indicator of water pollution, especially from organic wastes. Lower DO levels can adversely affect aquatic life and indicate poorer water quality.

Among the given options, Norplant has not been recently introduced to improve contraceptive coverage in India. Norplant is a long-acting, reversible birth control method that involves the surgical implantation of capsules or rods under the skin.

However, due to certain side effects and other issues, Norplant hasn't been made broadly available at Primary Health Centres in India.

On the other hand, initiatives like ANTARA, providing Centchroman free of cost, and ASHAs delivering contraceptives at the doorstep are recent efforts to enhance contraceptive coverage in the country.

Quality of life refers to the subjective component of well-being. While levels of living or standards of living might be gauged through more tangible metrics such as income or possessions, quality of life encompasses broader aspects including happiness. satisfaction, and personal perceptions of one's life situation.

It involves both physical and emotional health, personal beliefs, social relationships, and the environment in which the individual lives.

The full definition of health as provided by the World Health Organization is: "Health is a state of complete physical, mental and social well-being and not merely an absence of disease or infirmity and the ability to lead a socially and economically productive life."

This definition underscores the fact that health isn't just about not being sick; it's also about being able to participate fully in society and to function at our best both socially and economically.

In the context of demography, the term 'family size' specifically refers to the total number of children a woman has borne at a particular point in time. This is crucial in demographic studies as it helps in understanding the fertility patterns of a population.

This metric provides insight into the reproductive behavior of populations and can be used to forecast population growth, which in turn has implications for planning in areas such as education, housing, and health.

Gross National Product (GNP) is not a direct indicator to measure Quality of Life.

While GNP measures the total value of goods and services produced by a country's residents within a year, it doesn't account for factors like income distribution, health, education, or environmental conditions, which play a significant role in determining an individual's quality of life.

On the other hand, the Gender-Related Development Index (GDI), Human Development Index (HDI), and Human Poverty Index (HPI) are more comprehensive and factor in various aspects that contribute to quality of life, thus offering a more holistic view.

Centchroman is a non-hormonal oral contraceptive. Unlike most other oral contraceptives which function by mimicking the hormones estrogen and/or progesterone, Centchroman operates through a different mechanism.

It affects the estrogen receptors in the body, which in turn disrupts the menstrual cycle and prevents implantation.

Centchroman offers the advantage of being hormone-free, which can be preferable for women who want to avoid the side effects associated with hormonal contraceptives. It's also notable for being developed in India and is distributed under various trade names.