UGC NET Physical Education Physical Education - Class VIII Syllabus

Define independent and dependent variables.

The independent variable is the treatment/cause that the researcher manipulates; the dependent variable is the outcome/effect that is measured and is expected to change due to the independent variable.

What is a control group versus an experimental group?

The experimental group receives the treatment (independent variable); the control group does not and provides a baseline for comparison.

Distinguish internal and external validity of an experiment.

Internal validity is the degree to which observed effects are truly caused by the treatment and not by extraneous factors; external validity is the degree to which results can be generalized to other people, settings and times.

What is a confounding (extraneous) variable?

An uncontrolled variable other than the independent variable that may influence the dependent variable and thus distort the true cause-and-effect relationship.

Why is randomization important in experimental research?

Random assignment of subjects equalizes groups by distributing extraneous variables by chance, controlling bias and strengthening internal validity.

What is a research problem?

A clearly stated question, gap, difficulty or felt need that a researcher seeks to investigate and resolve through systematic study.

List four major sources from which a research problem can be identified.

Personal experience and observation, review of related literature, existing theories, consultation with experts/teachers, and current social/practical needs.

State four criteria of a good research problem.

It should be feasible (time, resources, data), significant/useful, novel (not a needless duplication), researchable/measurable, and ethically sound.

What is delimitation of a research problem?

The boundaries the researcher deliberately sets (e.g., age group, gender, variables, geographic area) to narrow and define the scope of the study.

Differentiate delimitations from limitations of a study.

Delimitations are boundaries the researcher consciously chooses to restrict scope; limitations are uncontrollable weaknesses or shortcomings beyond the researcher's control that may affect results.

What is a research hypothesis?

A tentative, testable statement or intelligent guess about the expected relationship between two or more variables, which the study aims to verify or reject.

Distinguish the null hypothesis ($H_0$) from the alternative hypothesis ($H_1$).

The null hypothesis ($H_0$) states there is no significant difference or relationship; the alternative hypothesis ($H_1$) states that a significant difference or relationship does exist.

What is a directional versus a non-directional hypothesis?

A directional (one-tailed) hypothesis predicts the specific direction of the relationship/difference (e.g., greater than); a non-directional (two-tailed) hypothesis predicts a difference exists but not its direction.

State four characteristics of a good hypothesis.

It must be testable/verifiable, clear and specific, stated simply, conceptually consistent with known facts/theory, and able to state an expected relationship between variables.

What is hypothesis testing?

A statistical procedure that uses sample data to decide whether to reject or fail to reject the null hypothesis about a population, based on a chosen level of significance.

Define Type I and Type II errors in hypothesis testing.

A Type I error (α) is rejecting a true null hypothesis (false positive); a Type II error (β) is failing to reject a false null hypothesis (false negative).

What is the level of significance, and what are its common values?

The level of significance ($\alpha$) is the probability of committing a Type I error—the risk of wrongly rejecting a true $H_0$. Common values are $\alpha = 0.05$ and $\alpha = 0.01$.

State the decision rule for rejecting the null hypothesis using the p-value.

Reject $H_0$ if the calculated $p \leq \alpha$ (the result is statistically significant); fail to reject $H_0$ if $p > \alpha$.

What is meant by 'tools of research'?

The instruments or devices (such as questionnaires, interviews, observation schedules, tests and rating scales) used to collect data for a research study.

State the two essential qualities a good research tool must possess.

Validity (the tool measures what it is intended to measure) and reliability (the tool gives consistent, repeatable results).

What is a questionnaire?

A research tool consisting of a set of written questions sent to respondents who fill in the answers themselves, used to gather information from a large, often distant, sample.

Distinguish closed-ended (structured) from open-ended (unstructured) questionnaire items.

Closed-ended items provide fixed response choices for easy quantification; open-ended items let respondents answer freely in their own words, giving richer but harder-to-analyze data.

State one major advantage and one major disadvantage of the questionnaire.

Advantage: it is economical and can reach many respondents over a wide area. Disadvantage: it often has a low response rate and cannot be used with illiterate respondents.

What is an opinionnaire (attitude scale)?

A research tool designed to collect respondents' opinions, attitudes, beliefs or feelings about an issue rather than factual information.

Name two common types of attitude scales used in opinionnaires.

The Likert scale (summated ratings) and the Thurstone scale (equal-appearing intervals); the Guttman scale is another.

What is an interview as a research tool?

A purposeful face-to-face (or verbal) conversation in which the interviewer asks questions to obtain information directly from the respondent.

Differentiate structured from unstructured interviews.

A structured interview uses a fixed, pre-set list of questions asked in a set order; an unstructured interview is flexible and open, allowing free exploration of responses.

State one advantage and one disadvantage of the interview method.

Advantage: it allows clarification, probing and is usable with illiterate subjects, yielding in-depth data. Disadvantage: it is time-consuming, costly and prone to interviewer bias.

What is the observation method, and how is participant observation different from non-participant observation?

Observation collects data by systematically watching and recording behavior as it occurs. In participant observation the researcher joins and takes part in the group; in non-participant observation the researcher watches from outside without joining.

List the main steps of a systematic literature search.

(1) Define the topic/keywords, (2) identify relevant sources (library, databases, internet), (3) search and locate references, (4) read, evaluate and select credible material, (5) take notes/organize, and (6) write the review citing sources. Primary, secondary and general/reference materials are the chief source types.

Name two major online research databases and one common internet search engine useful for a literature review.

Databases: PubMed/MEDLINE, ERIC, Scopus, Web of Science, JSTOR, or Shodhganga (Indian theses). Search engine for scholarly literature: Google Scholar (also general engines like Google).