Learn Before
Describe the core argument of the criticism that null hypothesis significance testing is fundamentally "uninformative." In your answer, explain what the null hypothesis posits and what rejecting it actually tells a researcher about the relationship between variables in the population.
Question: Describe the core argument of the criticism that null hypothesis significance testing is fundamentally "uninformative." In your answer, explain what the null hypothesis posits and what rejecting it actually tells a researcher about the relationship between variables in the population.
Sample answer: The criticism that null hypothesis testing is fundamentally uninformative is based on the idea that the null hypothesis posits precisely zero relationship between variables in the population. Critics argue that a relationship of exactly zero is never literally true in the real world. Therefore, rejecting the null hypothesis merely confirms that some nonzero relationship exists, which provides researchers with very little precise information about the actual strength or nature of the phenomenon being studied.
Key points:
- The null hypothesis posits precisely zero relationship between variables in the population.
- Critics argue that a relationship of exactly zero is never literally true in the real world.
- Rejecting the null hypothesis merely confirms that some nonzero relationship exists.
- Rejecting the null hypothesis provides very little precise information about the actual strength or nature of the phenomenon.
Rubric: To receive full credit, the response must: 1. State that the null hypothesis posits precisely zero relationship between variables in the population. 2. Explain the critics' argument that a relationship of exactly zero is never literally true in the real world. 3. Explain that rejecting the null hypothesis only confirms that a nonzero relationship exists. 4. Describe how this provides very little precise information about the actual strength or nature of the relationship.
0
1
Tags
KPU
Research Methods in Psychology - 4th American Edition @ KPU
Related
Critics argue that null hypothesis testing is fundamentally uninformative because rejecting the null hypothesis merely confirms that some nonzero relationship exists, without providing precise information about its actual strength.
Critics argue that null hypothesis testing is 'uninformative' because the null hypothesis—which posits an exactly zero relationship—is rarely true in the real world. According to this critique, why is simply rejecting the null hypothesis considered an insufficient scientific conclusion?
A researcher investigating the impact of sleep on cognitive performance finds a statistically significant difference (p < .05) between groups. Apply the 'informativeness' critique of null hypothesis testing to this study by matching the following terms with their correct application to this scenario.
Critics argue that null hypothesis testing is fundamentally uninformative because it tests a premise that is never literally true. Sequence the following steps to represent the logical flow of this critique, from the initial statistical assumption to the conclusion regarding scientific precision.
Match each term related to the 'informativeness' critique of null hypothesis testing with its correct description.
According to the 'informativeness' critique, what is the primary reason that rejecting a null hypothesis of exactly is often considered a trivial accomplishment?
When evaluating the scientific utility of a result that merely rejects a null hypothesis of exactly , critics argue that the finding is fundamentally _____ because it provides no precise information about the actual strength of the relationship.
A researcher studying a new therapy finds a statistically significant difference between groups () and asserts that this finding provides precise information about the strength of the therapy's effect. According to the informativeness critique of null hypothesis testing, the researcher's assertion is correct.
Critics analyze the null hypothesis by pointing out that because it posits a relationship of exactly zero, rejecting it merely confirms that some _____ relationship exists in the population, which fails to provide precise information about the strength of the phenomenon.
To evaluate the usefulness of a statistical conclusion under the informativeness critique, order the steps of the critique's argument from the initial assumption to the final evaluation of the test's utility.
Describe the core argument of the criticism that null hypothesis significance testing is fundamentally "uninformative." In your answer, explain what the null hypothesis posits and what rejecting it actually tells a researcher about the relationship between variables in the population.
Explain why critics of null hypothesis testing would argue that the psychologist's conclusion is unsupported based solely on rejecting the null hypothesis. How does the concept of "uninformativeness" help diagnose the limitation of the psychologist's finding?
A clinical researcher compares two therapeutic techniques and finds a statistically significant difference, thereby rejecting the null hypothesis. If the researcher only reports that the null hypothesis was rejected, apply the "uninformativeness" critique to explain what critical information is missing from their conclusion.