The grammar test was checked for reliability by the split-half method giving r = 0.922.
2.
However, since the items in the tests were not arranged in order of difficulty, the validity of the split-half method of assessment is questionable.
3.
Their grammatical knowledge was assessed by means of 8 ten-minute tests, 7 directed at the parts of speech and one at the analysis of sentences, the reliability of these tests being judged by the split-half method, giving a reliability co-efficient of 0.963.
4.
Test C, the formal grammar test, provided likely data and was retained for further use .-Search for Measuring Instrument Tested by the split-half method ( R = 2r ), it gave a co-efficient of + 0.923 s . e . 0.014, 1 + r and its average scores in the four preliminary forms were:
मोबाइल