Reliability is an important prerequisite for psychometric tests in South Africa. Please assist in calculating the...
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Reliability is an important prerequisite for psychometric tests in South Africa. Please assist in calculating the split-half reliability of Test X (the Personality measure)? You do not need to show any formulas. Please indicate the correct values to be substituted in the formula for questions 12-21. Include only your final answer of the calculated reliability for Question 22. (11) Q121/Q19 [013][Q14] X = [√Q15-2[16²]][Q17-₁[18²]] Question 12 Value to be substituted 13 Value to be substituted 14 Value to be substituted 15 Value to be substituted 16 Value to be substituted 17 Value to be substituted 18 Value to be substituted 19 Value to be substituted 20 Value to be substituted 21 Value to be substituted 22 Calculated reliability (final answer only - rounded off to two decimals). ANSWER Applicant Albert Moira Brent Carole Patrice Sandral Ashley Sizana Hillary Jenny Score for odd items (x₁) 7 8 7 6 5 8 4 5 7 8 Σχ. 65 Personality Measure Test X scores X₁² 49 64 49 36 25 64 16 25 49 64 441 Score for even items (x2) 8 7 6 8 6 9 5 5 7 9 Ex₂ 70 X₂² 64 49 36 64 36 81 25 25 49 81 Σχ,2 510 Product of items X1X2 56 یایدا 56 42 48 30 72 20 25 49 72 ΣΧ1Χ2 470 TABLE 1 Total score (X) 15 15 13 14 11 17 9 10 14 17 ΣΧ I 2 135 Score for odd items (Z1) 6 6 2 4 4 5 4 6 7 MON 6 ΣΖ, N 1 Cognitive Ability Measure Test Z scores Score for even items (Z₂) 2 4 4 5 3 3 6 Z₁² 36 36 4 16 16 25 16 36 49 36 Σ212 2 3 4 5 Σz₂ 吃。 3 Z₂² 4 16 16 25 9 9 36 9 16 25 Σz₂² 4 * Product of items Z₁Z2 12 24 8 20 12 15 24 18 28 30 [Z₁Z₂ 5 Total score (Z) 8 10 6 9 7 8 60⁰ 10 9 11 11 SZ 6 Product XZ 58 76 38 64 38 67 46 45 77 93 ΣΧΖ 602 Reliability is an important prerequisite for psychometric tests in South Africa. Please assist in calculating the split-half reliability of Test X (the Personality measure)? You do not need to show any formulas. Please indicate the correct values to be substituted in the formula for questions 12-21. Include only your final answer of the calculated reliability for Question 22. (11) Q121/Q19 [013][Q14] X = [√Q15-2[16²]][Q17-₁[18²]] Question 12 Value to be substituted 13 Value to be substituted 14 Value to be substituted 15 Value to be substituted 16 Value to be substituted 17 Value to be substituted 18 Value to be substituted 19 Value to be substituted 20 Value to be substituted 21 Value to be substituted 22 Calculated reliability (final answer only - rounded off to two decimals). ANSWER Applicant Albert Moira Brent Carole Patrice Sandral Ashley Sizana Hillary Jenny Score for odd items (x₁) 7 8 7 6 5 8 4 5 7 8 Σχ. 65 Personality Measure Test X scores X₁² 49 64 49 36 25 64 16 25 49 64 441 Score for even items (x2) 8 7 6 8 6 9 5 5 7 9 Ex₂ 70 X₂² 64 49 36 64 36 81 25 25 49 81 Σχ,2 510 Product of items X1X2 56 یایدا 56 42 48 30 72 20 25 49 72 ΣΧ1Χ2 470 TABLE 1 Total score (X) 15 15 13 14 11 17 9 10 14 17 ΣΧ I 2 135 Score for odd items (Z1) 6 6 2 4 4 5 4 6 7 MON 6 ΣΖ, N 1 Cognitive Ability Measure Test Z scores Score for even items (Z₂) 2 4 4 5 3 3 6 Z₁² 36 36 4 16 16 25 16 36 49 36 Σ212 2 3 4 5 Σz₂ 吃。 3 Z₂² 4 16 16 25 9 9 36 9 16 25 Σz₂² 4 * Product of items Z₁Z2 12 24 8 20 12 15 24 18 28 30 [Z₁Z₂ 5 Total score (Z) 8 10 6 9 7 8 60⁰ 10 9 11 11 SZ 6 Product XZ 58 76 38 64 38 67 46 45 77 93 ΣΧΖ 602
Expert Answer:
Answer rating: 100% (QA)
The split half reliability of a test is given by the formula p2 or p12 ny y y X p12 y y v2 2 y ... View the full answer
Related Book For
Intermediate Accounting
ISBN: 978-0324592375
17th Edition
Authors: James D. Stice, Earl K. Stice, Fred Skousen
Posted Date:
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