Evaluating the Content Validity of Grade 10 Mathematics Model Examinations in Oromia National Regional State, Ethiopia

Table 4

The number of observed and expected tests items that are determined from the contents of the syllabus exercises by judges.

Content areas	Observed number of exercises	Expected number of exercises	Observed test items average across judges	Expected test items average across judges	Total
(1) The real number system	480	462.50	26.38	43.88	506.38
(2) Equations and inequalities	420	435	56.27	41.27	476.27
(3) Further on set theory	246	242.04	19	22.96	265
(4) Relations and functions	222	229.26	29.01	21.75	251.01
(5) Regular polygons	198	192.72	13	18.28	211
(6) Further on congruency and similarity	132	132.10	12.63	12.53	144.63
(7) Circles	162	157.10	10	14.90	172
(8) Statistical data and probability	276	267.61	17	25.39	293
(9) Vector in two dimensions	90	88.59	7	8.41	97
(10) Polynomial function	336	327.89	23	31.11	359
(11) Exponents and logarithms	102	107.32	15.5	10.18	117.50
(12) Graph of exponential and logarithmic functions	78	77.63	7	7.37	85
(13) Equations and applications of exponents and logarithms	66	88.95	31.39	8.44	97.39
(14) Distance and section formulas	72	71.24	6	6.76	78
(15) Equation of a line, parallel and perpendicular lines	156	159.50	18.63	15.13	174.63
(16) Basic trigonometric functions	120	127.64	19.75	12.11	139.75
(17) The reciprocal trigonometric functions	36	39.16	6.88	3.72	42.88
(18) Identities and real-life problems of trigonometry	42	44.98	7.25	4.27	49.25
(19) Theorems on triangles and special quadrilaterals	114	111.44	8.01	10.57	122.01
(20) Measurement	342	327.33	16.38	31.05	358.38
Total	3690	3690	350.08	350.08	4040.08