UGC NET Questions (Paper – 1)

The dependent variable represents the effect or outcome that may change as a result of manipulations of the independent variable. It is the main variable of interest whose variation the researcher wishes to explain or predict. Measurements of the dependent variable are compared across groups or conditions to evaluate the impact of the treatment. Thus, the outcome described in the stem is correctly called the dependent variable.

Option A:
The dependent variable is “dependent” in the sense that its values are expected to depend on or be influenced by the independent variable under investigation. In educational experiments, typical dependent variables include achievement scores, attitudes or skills. Because the stem refers to the outcome measured to assess treatment effect, this label is appropriate and correct.

Option B:
A control variable is a factor that the researcher keeps constant to prevent it from confounding the relationship between the independent and dependent variables. It is not the main outcome of interest.

Option C:
A moderator variable affects the strength or direction of the relationship between independent and dependent variables, rather than being the primary outcome. It answers questions about for whom or under what conditions the treatment works.

Option D:
A confounding variable is an uncontrolled factor that influences the dependent variable along with the independent variable, making it difficult to interpret causal effects. It is considered a threat rather than the planned outcome.

Statements A, B, C and E are all correct descriptions of different roles that variables can play in research. The independent variable is manipulated, the dependent variable is the measured outcome, mediators explain the mechanism linking the two and extraneous variables can disturb this relationship if not managed. Statement D is false because control variables are not varied; they are held constant to minimise their influence. Thus the correct combination must include A, B, C and E while excluding D.

Option A:
Option A includes A, B and C but omits E, thereby ignoring the important influence of extraneous variables on internal validity. Without recognising the potential confounding effect of extraneous variables, the description of variable types remains incomplete.

Option B:
Option B is correct because it brings together all four accurate statements about independent, dependent, mediating and extraneous variables. It excludes D, which incorrectly suggests that control variables are deliberately varied rather than controlled.

Option C:
Option C wrongly includes D, the false statement about control variables, and omits B, which correctly defines the dependent variable. This combination therefore both adds an incorrect assertion and drops a key correct one.

Option D:
Option D contains D alongside B and E. Since D misrepresents control variables, this option becomes invalid even though it includes two true statements.

Option E offers only C and E, leaving out the basic definitions of independent and dependent variables provided in A and B. Because it fails to include all the true statements, it cannot be the correct answer.

The independent variable is the one that the researcher systematically changes or manipulates to study its impact on another variable. It is considered the presumed cause in a cause–effect relationship. By varying the independent variable across groups or conditions, the researcher can observe differences in outcomes and infer potential causal effects. Therefore, the manipulated variable described in the stem is the independent variable.

Option A:
The dependent variable is the outcome that is measured to see how it responds to changes in the independent variable. It is not directly manipulated but observed. Because the stem emphasises deliberate manipulation, dependent does not fit.

Option B:
An intervening variable lies in the causal chain between independent and dependent variables and explains the process linking them. It is not usually under direct experimental control in basic designs.

Option C:
Extraneous variables are any uncontrolled factors that may influence the dependent variable and threaten internal validity. Researchers seek to eliminate or control them, but they are not the focus of deliberate manipulation.

Option D:
The independent variable is selected and manipulated according to the research design, such as using different teaching methods or time allocations. Observed differences in the dependent variable across conditions are then attributed, under proper controls, to this independent variable. This matches the description in the stem, making this option correct.

Statements A, B and D are correct because a theoretical framework connects the study to theory, guides the choice and definition of variables and offers a perspective for interpreting results. Statement C is false since a framework does not replace the need for a thorough literature review. Statement E is also false because frameworks are often adapted or constructed rather than copied unchanged from one study. Therefore, the combination that includes A, B and D but excludes C and E is correct.

Option A:
Option A is correct because it identifies precisely the three useful functions of a theoretical framework without adopting the mistaken ideas that it eliminates literature review or must be copied exactly. It maintains a balanced view of theory as guidance, not as a rigid template.

Option B:
Option B is incomplete because it omits D, failing to highlight that frameworks are crucial in making sense of results and relating them back to theory. Without D, the interpretive role of the framework is underplayed.

Option C:
Option C is incorrect because it includes E, which wrongly insists on unmodified borrowing, and omits A, which clarifies the link between the study and broader theory. This combination distorts the flexibility with which frameworks are used.

Option D:
Option D is wrong because it accepts C, the claim that literature review becomes unnecessary once a framework is chosen. Including C contradicts the principle that empirical work should be grounded in and compared with a broad range of prior studies.