02/21/07			SDIGIT - Sibling Module
		              
For more information on this module, see Appendix G-cor 946

OVERVIEW  
The purpose of this task is to help provide a measure for the cognitive ability of the respondent. The instructions to the respondent are as follows:
"Now we are going to do a task that's quite a bit different.  I'd like you to make sure that you're away from any noises or other distractions, and I'd like you to close your eyes for this part after I explain the instructions.  
This time I'm going to read some numbers to you, and when I am done I would like you to rearrange the numbers from the lowest number I say to the highest number I say and then say them back to me.  For example, if I said "4 
zero 2", you would say, "zero 2 4".  I can only say the numbers once, so that's why it's important that you are able to hear me clearly.  This is designed to be a little hard.  We don't expect everyone to get everything right, 
but we really want you to try your best, OK?  Is this clear?  Okay, the first set of numbers is...".  The interviewer then reads a series of three one-digit numbers, which appear on the computer screen.  The respondent 
attempts to say the numbers back in ascending order.  If the respondent answers correctly, he or she continues on to the next level, which uses four numbers instead of three.  
If the respondent answers incorrectly, the interviewer reads another set of three numbers for the respondent's second attempt.  If the respondent answers incorrectly on the second attempt, the module ends.  
This pattern continues until the respondent either fails at one level or completes the last level, which uses eight numbers.

BRIEF VARIABLE DESCRIPTIONS 
ci501re	Indicates if Sib is in 80% digit ordering sample. 
ci502re	Highest level Sib successfully completed.  
ci503re	Alternative scoring method for digit ordering task.  
ci504re	Additional information about low performance on digit-ordering task.  
ci531re	Tabulation of results: Level 3, Item 1.  
ci532re	Tabulation of results: Level 3, Item 2.  
ci535re	List of Sibs' answers: Level 3, Item 1.  
ci536re	List of Sibs' answers: Level 3, Item 2.  
ci541re	Tabulation of results: Level 4, Item 1.  
ci542re	Tabulation of results: Level 4, Item 2. 
ci545re	List of Sibs' answers: Level 4, Item 1.  
ci546re	List of Sibs' answers: Level 4, Item 2.  
ci551re	Tabulation of results: Level 5, Item 1.  
ci552re	Tabulation of results: Level 5, Item 2.  
ci555re	List of Sibs' answers: Level 5, Item 1.  
ci556re	List of Sibs' answers: Level 5, Item 2.  
ci561re	Tabulation of results: Level 6, Item 1.  
ci562re	Tabulation of results: Level 6, Item 2.  
ci565re	List of Sibs' answers: Level 6, Item 1.  
ci566re	List of Sibs' answers: Level 6, Item 2.  
ci571re	Tabulation of results: Level 7, Item 1.  
ci572re	Tabulation of results: Level 7, Item 2.  
ci575re	List of Sibs' answers: Level 7, Item 1.  
ci576re	List of Sibs' answers: Level 7, Item 2.  
ci581re	Tabulation of results: Level 8, Item 1.  
ci582re	Tabulation of results: Level 8, Item 2.  
ci585re	List of Sibs' answers: Level 8, Item 1.  
ci586re	List of Sibs' answers: Level 8, Item 2

CODING 
ci501re - ci586re

   All refusals become REFUSED for remaining variables.  Once Sib gets two consecutive questions wrong, task ends and remaining variables are INAP.  Some INAPS for even-numbered variables are from 
respondents who answer correctly on the first attempts.

PROBLEMS:  
In some instances, interviewers made mistakes while administering the module, such as saying a number other than the ones that appeared on the screen or missing a number completely.  In cases where this error occurred, and the 
respondent provided a correct answer for the wrong digits read to them, the answer was changed to give the respondent credit for providing a correct answer.
For a few cases, interviewer error prevented the respondent from getting as far as the respondent's answers would warrant.  Such cases were set to 'NOT ASCERTAINED' since the interviewer error rather than the respondent caused the score.

NOTES:
The variables for lists of answers, which are those variables ending in 5 or
  6, are string variables.  While the negative values do not have labels, they
  have the same meaning as for the other variables.

  Refusals and not ascertained cases do not receive scores for the score and
  level variables because they did not complete the task.

  Cases with values of 'not ascertained' include problems due to respondent
  error, interviewer error, instrument error, spoiled cases, and cases in which
  respondents may have written down the numbers.  The values of 'not
  ascertained' may disappear from attempt one to two at each level if the
  respondent gets the second attempt correct.