IPT English Test Norms - ballard-tighe.com

1 Copyright 2017 by Ballard & Tighe, Publishers, a division of Educational IDEAS, Inc. 1 IPT English Test Norms Newest Norms , 2014 and 2016 data This document contains tables for converting IPT test scores into norm-referenced scores (percentiles and normal curve equivalents) for the purpose of score reporting. Pre-IPT Oral English Test, 5th Edition (2016 data) IPT I Oral English Test, Forms G & H, 2nd Edition (2016 data) IPT II Oral English Test, Forms E & F, 2nd Edition (2016 data) IPT Early Literacy English Reading & Writing Test, 4th Edition (2016 data) IPT 1 English Reading & Writing Test, 3rd Edition, Forms C & D (2014 data) IPT 2 English Reading & Writing Test, 3rd Edition, Forms C & D (2014 data) IPT 3 English Reading & Writing Test, 3rd Edition, Forms C & D (2014 data) Document created 7/2017 Copyright 2017 by Ballard & Tighe, Publishers, a division of Educational IDEAS, Inc.

2 2 IPT Oral Tests Three methods for deriving norm-referenced scores for the IPT Oral tests are presented below. The methods differ by the type of score information that is available for deriving the scores and by their accuracy. The first method is the most accurate, but it requires the longest test administration procedure and the most detailed score information. The third method is the least accurate and as explained below is not recommended for the evaluation of students progress. It is important to use the same method of norm-referenced score derivation for all scores that are intended to be compared to each other (for example, student-to-student comparisons or a year-to-year comparison of the same student s performance).

3 Method 1: Administering the entire test This method produces the most accurate norm-referenced scores for each student. However, it requires that each student is administered the entire test from beginning to end regardless of their performance on each of the test levels. Test administration is always started with item #1, and no stopping rules are applied during testing. The number of correct responses is tallied at the end of testing. See Tables 1-15 in this document for the score derivation tables. Method 2: Administering a potentially shortened test This method makes use of the IPT Oral tests adaptive feature of stopping rules, which allow the examiner to stop the test administration at the end of test levels A, B, C, D, or E, or start the test at a later point than item #1 based on earlier test performance.

4 This method requires assumptions to be made about the student s performance on the items that were not administered. Specifically, it requires the assumptions that the student would have answered correctly all the items in the beginning of the test that were not administered, and that the student would have answered incorrectly all the items that were not administered at the end of the test. The student s raw score, for the purpose of deriving norm-referenced scores, would then be equal to the number of items in any levels skipped at the beginning of the test plus the number of correctly answered items in the level(s) that were actually administered. Because of the assumptions, this method produces less accurate scores than Method 1, and it is very important that scores using Method 2 not be compared to scores using Method 1.

5 However, if Method 2 is applied consistently to all score records, Tables 1-15 in this document may be used to derive norm-referenced scores for the IPT Oral tests. Method 3: Deriving norm-referenced scores from Oral score levels A F The IPT designations of Non- English , Limited English , and Fluent English , as well as the proficiency levels of Beginning, Early Intermediate, Intermediate, Early Advanced, and Advanced, are derived from students Oral score levels. As a result, it is possible that only the Oral score level has been recorded for the student ( , a raw score is not available). It is possible to convert these score levels into norm- referenced scores, but since there are very few data points available, the norm-referenced score information that can be provided is equally sparse.

6 It should be noted that Method 3 is far from ideal, as it assigns the same percentile to all students who score at a given Oral score level regardless of their original raw score. Furthermore, the percentiles Copyright 2017 by Ballard & Tighe, Publishers, a division of Educational IDEAS, Inc. 3assigned for the alternate forms do not match, reflecting the relative difficulty of Form G to Form H for the IPT I, and Form E to Form F for the IPT II. As a result, the percentiles from this solution should not be used for progress evaluation, as even if a student remains at the same Oral score level, switching to the alternate form may result in a different percentile simply on the basis of the switch.

7 Tables 16 20 contain the norm-referenced scores for Method 3. Norm-referenced score derivation tables for Methods 1 and 2 Tables 1-15 provide the scaled scores, percentiles, and normal curve equivalent (NCE) scores yielded by the IPT Oral tests using Method 1 or Method 2. Tables 1 3 cover the Pre-IPT (5th Ed.), Tables 4 7 cover the IPT I Form G (2nd Ed.), Tables 8 11 cover the IPT I Form H (2nd Ed.), Tables 12 and 13 cover the IPT II Form E (2nd Ed.), and Tables 14 and 15 cover the IPT II Form F (2nd Ed.). Table 1: Pre-IPT Oral Test, 5th Edition Norms for 3-Year-Old Students (Norm Year 2016) Raw Score Scaled Score Percentile NCE Raw ScoreScaled Score Percentile NCE 1 30 8 20 21 93 92 80 2 35 22 34 22 95 93 81 3 40 34 41 23 97 94 83 4 45 46 48 24 99 95 85 5 50 57 54 25 102 96 87 6 54 68 60 26 104 96 87 7 58 78 66 27 106 96 87 8 61 83 70 28 108 97 90 9 65 83 70 29 111 97 90 10 67 84 71 30 113 97 90 11 70 84 71 31 116 97 90 12 73 85 72 32 119 98 93 13 75 86 73 33 122 98 93 14 78 87 74 34 125 98 93 15 80

8 89 76 35 129 99 99 16 82 90 77 36 133 99 99 17 84 91 78 37 138 99 99 18 87 91 78 38 143 99 99 19 89 92 80 39 148 99 99 20 91 92 80 40 153 99 99 Copyright 2017 by Ballard & Tighe, Publishers, a division of Educational IDEAS, Inc. 4 Table 2: Pre-IPT Oral Test, 5th Edition Norms for 4-Year-Old Students (Norm Year 2016) Raw Score Scaled Score Percentile NCE Raw ScoreScaled Score Percentile NCE 1 30 4 13 21 93 79 67 2 35 12 25 22 95 80 68 3 40 20 32 23 97 82 69 4 45 28 38 24 99 84 71 5 50 38 44 25 102 86 73 6 54 48 49 26 104 87 74 7 58 59 55 27 106 88 75 8 61 65 58 28 108 88 75 9 65 65 58 29 111 89 76 10 67 66 59 30 113 89 76 11 70 66 59 31 116 90 77 12 73 67 59 32 119 91 78 13 75 69 60 33 122 92 80 14 78 70 61 34 125 93 81 15 80

9 73 63 35 129 95 85 16 82 76 65 36 133 96 87 17 84 77 66 37 138 97 90 18 87 77 66 38 143 98 93 19 89 78 66 39 148 99 99 20 91 78 66 40 153 99 99 Copyright 2017 by Ballard & Tighe, Publishers, a division of Educational IDEAS, Inc. 5 Table 3: Pre-IPT Oral Test, 5th Edition Norms for 5-Year-Old Students (Norm Year 2016) Raw Score Scaled Score Percentile NCE Raw ScoreScaled Score Percentile NCE 1 30 1 1 21 93 56 53 2 35 4 13 22 95 57 54 3 40 6 17 23 97 60 55 4 45 11 24 24 99 63 57 5 50 17 30 25 102 66 59 6 54 24 35 26 104 69 60 7 58 35 42 27 106 71 62 8 61 41 45 28 108 72 62 9 65 41 45 29 111 73 63 10 67 41 45 30 113 74 64 11 70 42 46 31 116 75 64 12 73 43 46 32 119 77 66 13 75 44 47 33 122 79 67 14 78 46 48 34 125 81 68 15 80 49 49

10 35 129 84 71 16 82 52 51 36 133 88 75 17 84 54 52 37 138 91 78 18 87 54 52 38 143 95 85 19 89 54 52 39 148 97 90 20 91 55 53 40 153 99 99 Copyright 2017 by Ballard & Tighe, Publishers, a division of Educational IDEAS, Inc. 6 Table 4: IPT I Oral Test Form G, 2nd Ed. Norms for Kindergarten (Norm Year 2016) Raw Score Scaled Score Percentile NCE Raw ScoreScaled Score Percentile NCE 0 40 3 10 38 120 85 72 1 43 8 20 39 121 86 73 2 48 11 24 40 122 87 74 3 53 15 28 41 124 87 74 4 58 18 31 42 125 87 74 5 63 21 33 43 126 87 74 6 67 24 35 44 127 88 75 7 71 28 38 45 128 88 75 8 74 33 41 46 129 88 75 9 77 38 44 47 130 88 75 10 80 45 47 48 131 89 76 11 83 53 52 49 132 90 77 12 83 53 52 50 134