Question
Which of the following statements about hypothesis are True ?
A. Hypothesis is a proposition that is stated in a testable form
B. It predicts a relationship between two or more variables
C. It is essential to have a hypothesis in a research study
D. Null hypothesis is a hypothesis of no difference
Ε. Hypothesis brings clarity, specificity and focus to a study
Choose the most appropriate answer from the options given below :
The correct answer is
A, B, D, E Only
Understanding Research Hypothesis Characteristics
This section explains the key characteristics of a hypothesis in research studies and evaluates each statement provided in the question.
Statement Analysis:
- Statement A: Hypothesis is a proposition that is stated in a testable form
This statement is True. A fundamental requirement of a good hypothesis is that it must be testable empirically. This means we must be able to collect data to either support or refute the proposition. - Statement B: It predicts a relationship between two or more variables
This statement is True. Hypotheses often propose a connection or association between variables. For example, a hypothesis might suggest that increased study time (variable 1) leads to higher exam scores (variable 2). - Statement C: It is essential to have a hypothesis in a research study
This statement is False. While hypotheses are crucial for many types of research (like quantitative studies), they are not essential for all. Some research, particularly exploratory or qualitative studies, might begin without a formal hypothesis, aiming to generate hypotheses from the data collected. - Statement D: Null hypothesis is a hypothesis of no difference
This statement is True. The null hypothesis, often denoted as $H_0$, represents a statement of 'no effect', 'no difference', or 'no relationship' between variables. It serves as a baseline against which the alternative hypothesis (which predicts an effect or difference) is tested. For example, $H_0$: There is no significant difference in exam scores between students who studied using method X and those who used method Y. - Statement E: Hypothesis brings clarity, specificity and focus to a study
This statement is True. A well-formulated hypothesis acts like a guide for the research. It clearly defines what the researcher intends to investigate, specifies the variables involved, and narrows down the scope, thereby providing focus to the study.
Conclusion on Statements:
Based on the analysis, statements A, B, D, and E accurately describe important aspects of hypotheses in research. Statement C is not universally true for all research designs.
Selecting the Correct Option:
The combination of true statements is A, B, D, and E. This corresponds to option 2.
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Important Questions from Hypothesis - Teaching
- Criteria for Hypotheses construction are
A. It should describe one issue only.
B. It should describe many issues.
C. It should specify variables between which the relationship is to be established.
D. It should be specific and precise.
E. It should be empirically testable, whether it is right or wrong.
Choose the correct answer from the options given below: - Identify the sources of hypothesis formulation.
A. Sampling method used for research
B. Reports of earlier research
C. Beliefs prevailing in the area of selected problem
D. Prior-experience of researcher in the area of selected problem
E. Type of population
Choose the most appropriate answer from the options given below : - Which of the following are the essential characteristics of good research hypothesis?
A. It should be clear and precise.
B. It should be testable.
C. It should be based on ethical consideration.
D. It should be stated in general terms without specifics.
E. It should indicate a relationship between variables.
Choose the correct answer from the options given below: - According to Wimmer and Dominick, a good research hypothesis should meet which of the following criteria?
A. It should contest current knowledge in the area
B. It should follow logical consistency
C. It should be in its most parsimonious form
D. It should be testable
E. It should be compatible with current knowledge in the area
Choose the correct answer from the options given below: - Which of the following statements is/are correct ?
A. The probability of making a Type II error is often called alpha error
B. The effects size is the degree to which the null hypothesis is accepted
C. Psychologist Jacob Cohen first addressed the question of sample size
D. A significant statistical test simply tells the researcher that an observed result is probably not the result of chance or error
E. A one-tail test predicts that the result will fall only in one direction - either positive or negative
Choose the correct answer from the options given below:
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