SON-R Overview SON-R Overview SON-R 2.5-7 SON-R 2.5-7 SON-R 5.5-17 SON-R 5.5-17 Computerprogram SON-test computer program SON-test


SON-test (version 1.3)
The Windows-version of the computer program of the SON

Peter Tellegen

January 6, 2005

The update program version 1.3 is now available

Introduction 1. Introduction
Functioning 2. The functioning of the program
IQstar 3. IQ*
Format 4. The format of the file SONR5.TXT
Update 5. Update program version 1.3

1. Introduction

The Windows-version of the computer program SON-test is supplied with the SON-R 2.5-7 and the SON-R 5.5-17. With this program the standardised scores for both tests can be calculated. Since March 2004 the Windows version 1.1 replaces the earlier DOS versions. This program can also be ordered seperately.
For your own use it is allowed to install the program on several computers.

The new program makes it easier to enter data, to correct input and to print results. The scoring form can be kept as a seperate file. Comments can be added and with the SON-R 5.5-17 it is now also possible to score impressions concerning motivation, concentration, etc. Newly added is IQ *; this is the IQ-score with a correction for the ageing of the standards (see below).

The way in which the standardised scores are calculated is the same as it was in the DOS versions. This means that the standardised scores are based on the exact age and that a number of outcomes are presented which would be difficult to compute manually or by using tables (such as for instance the reference age and standardised total scores for each combination of subtests).

The outcomes using the computer program may differ slightly compared with outcomes which are calculated manually using the standard tables. For this there are two causes. In the first place, in the tables an age interval is used whereas calculation with the computer program is based on the exact age. Secondly, with manual calculation the standardised subtest scores are rounded first and then added up for determining IQ. In the computer program round-off takes place at the end of all calculations. Also, in the computer program the reference age for the IQ is exactly determined by means of an iterative method. In the tables an estimate is given for the reference age. Therefore, computation with the computer program is always preferable.

The way in which the computer program functions is nearly identical for the two tests. The differences are elucidated below. For the meaning of the scores we refer to the SON-R 2.5-7 Manual & Research Report (chapter 13) and to the SON-R 5.5-17 Manual & Research Report (chapter 11).


2. The functioning of the computer program

The computer program is started by clicking on the SON-test icon on the desktop or by clicking on the name of the file in the folder where it was saved.
(by default: C:\Program Files\SON-test \).

The computer program consists of three parts:

  • the opening window where several options can be selected,
  • the data window for personal details and raw test scores,
  • the results window which can be printed and saved if so desired.

Introduction 1. Introduction
Functioning 2. Functioning
IQstar 3. IQ*
Format 4. Format SONR5.TXT
Update 5. Update version 1.3

Opening window
In the opening window the language is set (Dutch, German or English), the sequence in which day, month and year of birthdate and date of testing will be entered, and the test that has to be analysed (SON-R 2.5-7 or SON-R 5.5-17). The preferences for language and dates will be remembered but the setting for the test must be selected with every new calculation.

From the opening window one has access to previously saved scoring forms.

If the SON-R 5.5-17 has been selected one may indicate that a percentile score for the deaf population will be shown (it will be calculated only if the data of 6 or 7 subtests, or the data of the shortened version, have been entered).
Then one continues by clicking “Run Test”.

Data window
In the data window it is necessary to enter at least the date of testing, the date of birth and one subtest score.
The year of birth and the year of testing may be entered fully or by the last digit(s). In the latter case, 50 to 99 will be interpreted as 1955-1999 and 0 to 49 as 2000-2049.
The age will be shown in the window in years and months. If the age is either lower or higher than the standard range, a warning will appear. For the standardisation the border value of the age interval will then be used.

One may navigate through the fields using the mouse or the keyboard. After “Enter/Return” one goes to the next field and with “Tab” and “Shift-tab” one may jump from field to field.

With both tests one can enter an assessment (score 1-4) with comments on Motivation, Concentration, Cooperation and Understanding of Instructions. With the SON-R 2.5-7 this has always been part of the scoring form. With the next reprint of the SON-R 5.5-17 scoring forms this option will be added to this test.

After verifying the entered data, and after clicking "Show Results", the outcomes will be calculated
.

Results window
In the results window the outcomes are shown in the same way as on the scoring forms. Additionally, with the program for both tests IQ* will be presented with an 80%-interval. The meaning of IQ* will be discussed below.
For the SON-R 2.5-7 (as was the case in the DOS-version) the percentile score (pct) and the reliability (r) and the generalizability (g) of the Performance scale and the Reasoning scale are presented. The standard deviation of the subtest scores is also computed.


If one wishes to add comments to the standardised outcomes one may return to the previous window by clicking "Back" and then enter the comments in "Remarks". Then one has to click again on "Show Results".

At the top of the results window one may indicate if this page has to be saved and or printed.

By default, a checkbox has been ticked so the outcomes will be added to the test results file. For the SON-R 2.5-7 this is the file SONR2.TXT and for the SON-R 5.5-17 this is the file SONR5.TXT. The outcomes will be added to the file only after clicking "Continue".

By default, the files will be saved in the folder "My Documents\SON-data". But it is also possible to choose another folder in the opening window.
The new data will be added to the file, not overwriting the older data.

The file SONR2.TXT of the SON-R 2.5-7 is identical to the former file SONR2.DAT which was described in the Manual & Research Report (appendix C). In the current Windows-version of the program the suffix .TXT is used for easier opening of the files. For every person the file has entries on three lines and a separating line. In this file it is easy to read the results of a large number of persons; these results can also be imported into statistical progams like SPSS.

The file SONR5.TXT of the SON-R 5.5-17 is new but closely resembles the file SONR2.TXT of the SON-R 2.5-7. The format will be described below.

Simutaneous with the file SONR5.TXT the file SONR.TXT is produced. This file resembles the old file SONR.DAT which was used in the DOS-version of the program of the SON-R 5.5-17. The file SONR.TXT is for users who want to continue using the SONR.DAT file.


3. IQ*

IQ* ("IQ-starlet") is the Standard IQ-score which has been corrected for ageing of the standards. In western countries it has been found that old standards tend to raise the scores. This is known as the Flynn-effect. Generally it is estimated that this effect will raise the score by about 10 IQ-points per 30 years. Based on this estimate, IQ* is computed.


Introduction 1. Introduction
Functioning 2. Functioning
IQstar 3. IQ*
Format 4. Format SONR5.TXT
Update 5. Update version 1.3
The correction here equals the difference between the year in which the test is administered and the year in which the standardisation took place, divided by three and then rounded. As a lower and upper limit for the IQ* and the corresponding interval the values 55 and 145 are used.

The standardisation of the SON-R 2.5-7 took place in 1993/’94 and the correction in 2004 is therefore 3 IQ-points ([2004-1994]/3). The standardisation of the SON-R 5.5-17 took place in 1984/'85. The correction in 2004 is therefore 6 IQ-points ([2004-1985]/3).

With both tests the correction is applied to the Standard IQ and the 80% probability interval of the Generalized IQ. This interval indicates with a probability of 80% that the IQ would fall in this range if the test would consist of a great number of subtests and the ageing of the standards would correspond with the value now estimated.

If other recent and well standardised intelligence tests become available for comparison, it will be possible to arrive at better estimates of the ageing of the standards of the SON tests. And if in all these tests IQ* would be used, the scores could be compared in a true manner. Other tests could then follow suite. By making demands on the quality of the standardisations and the way in which IQ* is presented, IQ* could develop into a distinguishing mark for intelligence scores that are reliable, valid and truely comparable.

At the moment IQ* is mostly a warning about the possible effects of the ageing of the standards. This is not entirely new. In table 10.5 of the Manual & Research Report of the SON-R 2.5-7similar information is presented.


4. The format of the SONR5.TXT file

For every person the file has entries on three lines and a separating line.
(A) means non-numerical data.

. column .
line 1 1-30 (A) name
. 73 (A) Standard IQ, sign reference age (<,=,>)
75-76 Standard IQ, reference age, year
78-79 Standard IQ, reference age, month
.
line 2 1-4 date of birth, year
. 6-7 date of birth, month
9-10 date of birth, day
13-14 age, year
16-17 age, month
25-30 code
34-61 Raw scores: Cat, Mos, Hid, Pat, Sit, Ana, Sto
77-79 Standard IQ
.
line 3 1-4 test date, year
. 6-7 test date, month
9-10 test date, day
14 (A) gender (m,f)
17 gender (1=male, 2=female, 9=not entered)
25-28 assessment of Motivation, Concentration, Cooperation, Understanding Instructions
34-61 Standard scores: Cat, Mos, Hid, Pat, Sit, Ana, Sto
77-79 Standard score Specific IQ
.
line 4 is not read

Introduction 1. Introduction
Functioning 2. Functioning
IQstar 3. IQ*
Format 4. Format SONR5.TXT
Update 5. Update version 1.3

5. Update program version 1.3 (January 6, 2005)

You may upgrade version 1.1 or version 1.2 of the computer program SON-test to version 1.3. You may directly upgrade from version 1.1; it is not necessary to first install version 1.2.
It is not possible to install the update from version 1.0.

This update does not affect the testresults you have saved earlier.

The most important changes from version 1.2 to version 1.3:

  • an error in the computation of the reference age with the SON-R 5.5-17 has been repaired. This error did occur with the SON-R 5.5-17 in the special case that the subtest Analogies was administered while the subtest Situations was not administered. In this case, for the computation of the reference age, the program assumed that the raw score on Analogies was equal to zero. This mistake had no consequences for the computation of the standardised scores and for the IQ. The error did not occur when the complete test was administered. It also did not occur with the official short form of the SON-R 5.5-17 because this short form does include the subtest Situations;
  • the lay-out of the printed scoring form has been improved and is made more similar to the scoring form that is used with the test administration.

The most important changes from version 1.1 to version 1.2:

  • possibility to choose a different printer for display of results,
  • report can be correctly displayed, also if the font type of the screen has been adjusted,
  • improvements in lay-out,
  • in version 1.0 and version 1.1 date of birth and date of testing were written in the wrong following order in the file SONR.TXT. This is now corrected. The following order in version 1.2 is now date of testing, date of birth, just as it was in the old DOS-version. In the files SONR2.TXT and SONR5.TXT nothing has changed.

Click below to open the update (SON-test Update 1_3.exe).

download/install

In the dialog window choose "Open" to install the upgrade.
In the lower left corner of the opening window of the computer program you'll find the version-number.
There you may check after updating if you have correctly installed version 1.3.


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