Concurrent Validity. When the instrument can predict results similar to those similar tests already validated, it has concurrent validity.
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- What is an experiment?State the null and alternative hypothesis for the dataWhen a null hypothesis is rejected, the test is said to be "statistically significant." If aresearcher reports a statistically significant test at the 1% significance level, can we concludethat it would have been significant at the 5% level? Clearly explain your answer.
- Discuss the difference between concurrent validity and predictive validity and describe a situation in which you would use an instrument that has concurrent validity and predictive validity.Auditors must make judgments about various aspects of an audit on the basis of their own direct experience, indirect experience, or a combination of the two. In a study, auditors were asked to make judgments about the frequency of errors to be found in an audit. The judgments by the auditors were then compared to the actual results. Suppose the following data were obtained from a similar study; lower scores indicate better judgments. If answer is zero enter "0". Direct Indirect Combination 17.3 18.6 16.8 19.0 19.9 15.7 12.6 16.4 22.6 20.2 18.7 23.7 19.3 22.0 24.7 24.8 22.1 27.2 28.0 26.8 23.7 Source Sum of Degrees Mean Square F p-value of Squares of (to 2 (to 2 (to 2 Variation (to 2 decimals) Freedom decimals) decimals) decimals) Treatments Error Total Use a = 0.05 to test to see whether the basis for the judgment affects the quality of the judgment. The p-value is Select your answer - What is your conclusion? - Select your answer -Auditors must make judgments about various aspects of an audit on the basis of their own direct experience, indirect experience, or a combination of the two. In a study, auditors were asked to make judgments about the frequency of errors to be found in an audit. The judgments by the auditors were then compared to the actual results. Suppose the following data were obtained from a similar study; lower scores indicate better judgments. If answer is zero enter "0". Direct Indirect Combination 17.8 16.4 24.9 18.6 21.8 24.4 16.0 19.9 21.3 18.0 17.6 27.0 21.2 24.5 27.2 15.6 19.8 26.7 13.8 22.2 24.9 Please answer the blank spaces in the image, the p-value, and the conclusion.
- A researcher plans to do a study to see whether people who eat an all carbohydrate meal have different scores on a mood scale than people who eat an all protein meal. Thus, the manipulated independent variable is the type of meal (1 = carbohydrate, 2 = protein). What analysis would be the best choice to analyze the data?A researcher is interested in ascertaining whether performance on an aptitude test is significantly related to performance on the job. He obtained an aptitude test score of 50 new employees as well as their job performance ratings from their supervisors. He, however, suspects that some of the supervisors were biased in their ratings into ranks. what statistical test should be used to test the research hypothesis? Expain your answer.A psychologist hypothesizes that the children with type-K personality score higher than the children with type-R personality on an memory test. The estimated standard error turned out to be 0.9, while the mean score of type-K children was 18.8 and the mean score for type-R children was 21.3. What is the t score?