(Solution) An educator has constructed a test for mechanical aptitude. He wants to determine how reliable the test is over two administrations spaced by 1... > Snapessays.com

(Solution) An educator has constructed a test for mechanical aptitude. He wants to determine how reliable the test is over two administrations spaced by 1...

18. An educator has constructed a test for mechanical aptitude. He wants to determine how reliable thetest is over two administrations spaced by 1 month. A study is conducted in which 10 students are giventwo administrations of the test, with the second administration being 1 month after the first. The dataare given in the following table. Student                                   Administration 1                            Administration 21                                                     10                                                    102                                                     12                                                     153                                                     20                                                     174                                                     25                                                     255                                                     27                                                     326                                                    35                                                      377                                                    43                                                      408                                                    40                                                      389                                                    32                                                      3010                                                  47                                                       49 a. Construct a scatter plot of the paired scores.b. Determine the value of r.c. Would it be fair to say that this is a reliable test?Explain using r^2

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This question was answered on: Sep 21, 2023

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