Multi-Strand Test of Proficiency in Area Formulae | Items | Cronbach’s Alpha |
Area formula of a square | 1, 2, 3, 4, 5a, 5b, 5c, 5d and 5e | 0.97 |
Area formula of a rectangle | 6, 7, 8, 9, 10a, 10b, 10c, 10d and 10e | 0.95 |
Area formula of a triangle | 11, 12, 13, 14, 15a, 15b, 15c, 15d and 15e | 0.97 |
Overall | Items 1 to 15e | 0.98 |