Please write “true” if the statement is true and “false” is the statement is fal
ID: 3044930 • Letter: P
Question
Please write “true” if the statement is true and “false” is the statement is false in the space provided
_____11. The probability of committing a Type I error is equal to alpha ______12. A Type II error occurs when a treatment actually does have an effect but the effect fails to show up in a research study ______13. One way to reduce the risk of Type I error, saying there is an effect when in fact there is not an effect, is to lower the alpha level from .05 to .01 ______14. Type II error is to fail to reject a null hypothesis that is actually false ______15. In a research report, the term “statistically significant” is used to indicate that the null hypothesis was rejected ______16. In a research report, the notation p< .05 is used when the null hypothesis is rejected and the IV is shown to have a significant effect using an alpha level = .05 ______17. Alpha () is the probability of committing a Type II error ______18. In a Type II error, the experimenter concludes that there is evidence for an effect when in fact an effect does not exist ______19. Changing the level of significance from .01 to .05 increases the risk of Type I error ______20. When a researcher report demonstrates a significant treatment effect at the .05 alpha level, you can be more confident that the effect is real than if the researcher had reported a significant effect with an alpha level of only .01 ______21. There is always a possibility that the decision in a hypothesis test is incorrect ______22.To be more confident that a treatment actually does have a real effect, a researcher should use a large value for alpha ______23. The following hypothesis: “Nicotine should increase memory ability” requires a one-tail, directional test with the entire critical region located on the right side of the distribution ______24. The following hypothesis: “Nicotine should decrease memory ability” requires a one-tail, directional test with the entire critical region located on the left side of the distribution ______25. The following hypothesis: “Nicotine will have an effect on memory” requires a two-tail, non-directional test with the critical region divided between both tails of the distribution
Please write “true” if the statement is true and “false” is the statement is false in the space provided
_____11. The probability of committing a Type I error is equal to alpha ______12. A Type II error occurs when a treatment actually does have an effect but the effect fails to show up in a research study ______13. One way to reduce the risk of Type I error, saying there is an effect when in fact there is not an effect, is to lower the alpha level from .05 to .01 ______14. Type II error is to fail to reject a null hypothesis that is actually false ______15. In a research report, the term “statistically significant” is used to indicate that the null hypothesis was rejected ______16. In a research report, the notation p< .05 is used when the null hypothesis is rejected and the IV is shown to have a significant effect using an alpha level = .05 ______17. Alpha () is the probability of committing a Type II error ______18. In a Type II error, the experimenter concludes that there is evidence for an effect when in fact an effect does not exist ______19. Changing the level of significance from .01 to .05 increases the risk of Type I error ______20. When a researcher report demonstrates a significant treatment effect at the .05 alpha level, you can be more confident that the effect is real than if the researcher had reported a significant effect with an alpha level of only .01 ______21. There is always a possibility that the decision in a hypothesis test is incorrect ______22.To be more confident that a treatment actually does have a real effect, a researcher should use a large value for alpha ______23. The following hypothesis: “Nicotine should increase memory ability” requires a one-tail, directional test with the entire critical region located on the right side of the distribution ______24. The following hypothesis: “Nicotine should decrease memory ability” requires a one-tail, directional test with the entire critical region located on the left side of the distribution ______25. The following hypothesis: “Nicotine will have an effect on memory” requires a two-tail, non-directional test with the critical region divided between both tails of the distribution
Please write “true” if the statement is true and “false” is the statement is false in the space provided
_____11. The probability of committing a Type I error is equal to alpha ______12. A Type II error occurs when a treatment actually does have an effect but the effect fails to show up in a research study ______13. One way to reduce the risk of Type I error, saying there is an effect when in fact there is not an effect, is to lower the alpha level from .05 to .01 ______14. Type II error is to fail to reject a null hypothesis that is actually false ______15. In a research report, the term “statistically significant” is used to indicate that the null hypothesis was rejected ______16. In a research report, the notation p< .05 is used when the null hypothesis is rejected and the IV is shown to have a significant effect using an alpha level = .05 ______17. Alpha () is the probability of committing a Type II error ______18. In a Type II error, the experimenter concludes that there is evidence for an effect when in fact an effect does not exist ______19. Changing the level of significance from .01 to .05 increases the risk of Type I error ______20. When a researcher report demonstrates a significant treatment effect at the .05 alpha level, you can be more confident that the effect is real than if the researcher had reported a significant effect with an alpha level of only .01 ______21. There is always a possibility that the decision in a hypothesis test is incorrect ______22.To be more confident that a treatment actually does have a real effect, a researcher should use a large value for alpha ______23. The following hypothesis: “Nicotine should increase memory ability” requires a one-tail, directional test with the entire critical region located on the right side of the distribution ______24. The following hypothesis: “Nicotine should decrease memory ability” requires a one-tail, directional test with the entire critical region located on the left side of the distribution ______25. The following hypothesis: “Nicotine will have an effect on memory” requires a two-tail, non-directional test with the critical region divided between both tails of the distribution
Please write “true” if the statement is true and “false” is the statement is false in the space provided
_____11. The probability of committing a Type I error is equal to alpha ______12. A Type II error occurs when a treatment actually does have an effect but the effect fails to show up in a research study ______13. One way to reduce the risk of Type I error, saying there is an effect when in fact there is not an effect, is to lower the alpha level from .05 to .01 ______14. Type II error is to fail to reject a null hypothesis that is actually false ______15. In a research report, the term “statistically significant” is used to indicate that the null hypothesis was rejected ______16. In a research report, the notation p< .05 is used when the null hypothesis is rejected and the IV is shown to have a significant effect using an alpha level = .05 ______17. Alpha () is the probability of committing a Type II error ______18. In a Type II error, the experimenter concludes that there is evidence for an effect when in fact an effect does not exist ______19. Changing the level of significance from .01 to .05 increases the risk of Type I error ______20. When a researcher report demonstrates a significant treatment effect at the .05 alpha level, you can be more confident that the effect is real than if the researcher had reported a significant effect with an alpha level of only .01 ______21. There is always a possibility that the decision in a hypothesis test is incorrect ______22.To be more confident that a treatment actually does have a real effect, a researcher should use a large value for alpha ______23. The following hypothesis: “Nicotine should increase memory ability” requires a one-tail, directional test with the entire critical region located on the right side of the distribution ______24. The following hypothesis: “Nicotine should decrease memory ability” requires a one-tail, directional test with the entire critical region located on the left side of the distribution ______25. The following hypothesis: “Nicotine will have an effect on memory” requires a two-tail, non-directional test with the critical region divided between both tails of the distribution
Please write “true” if the statement is true and “false” is the statement is false in the space provided
Please write “true” if the statement is true and “false” is the statement is false in the space provided
_____11. The probability of committing a Type I error is equal to alpha ______12. A Type II error occurs when a treatment actually does have an effect but the effect fails to show up in a research study ______13. One way to reduce the risk of Type I error, saying there is an effect when in fact there is not an effect, is to lower the alpha level from .05 to .01 ______14. Type II error is to fail to reject a null hypothesis that is actually false ______15. In a research report, the term “statistically significant” is used to indicate that the null hypothesis was rejected ______16. In a research report, the notation p< .05 is used when the null hypothesis is rejected and the IV is shown to have a significant effect using an alpha level = .05 ______17. Alpha () is the probability of committing a Type II error ______18. In a Type II error, the experimenter concludes that there is evidence for an effect when in fact an effect does not exist ______19. Changing the level of significance from .01 to .05 increases the risk of Type I error ______20. When a researcher report demonstrates a significant treatment effect at the .05 alpha level, you can be more confident that the effect is real than if the researcher had reported a significant effect with an alpha level of only .01 ______21. There is always a possibility that the decision in a hypothesis test is incorrect ______22.To be more confident that a treatment actually does have a real effect, a researcher should use a large value for alpha ______23. The following hypothesis: “Nicotine should increase memory ability” requires a one-tail, directional test with the entire critical region located on the right side of the distribution ______24. The following hypothesis: “Nicotine should decrease memory ability” requires a one-tail, directional test with the entire critical region located on the left side of the distribution ______25. The following hypothesis: “Nicotine will have an effect on memory” requires a two-tail, non-directional test with the critical region divided between both tails of the distribution
Explanation / Answer
11. True
12. True
13. True
14. True
15. True
16. False
17. False
18. False
19. True
20. False
21. True
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