WLS Codebooks

Note: Codebooks contain frequency data from the private data release. For some variables, these differ from the frequencies in the public release. Variables that differ between the public and private versions include "(not available on public release)" as part of the variable description, or a note indicating the difference between the public and private versions.

Cognition - Number Series Task

Q1MCARDLE  Cognition - Number Series Task

OVERVIEW

The McArdle & Woodcock number series task measures induction and reasoning
ability with particular emphasis on quantitative reasoning. Each item consisted
of a series of numbers (e.g., 23, 26, 30, 35, __) and participants were asked
to identify the number that correctly completed the series. There are 15
different questions but each participant was only asked to answer six of them. 
All participants saw the same three items in the first block of questions. The
number of items answered correctly determined the difficulty of the three items
in a second block. Thus, each participant completed six items in total and a
score was calculated based on which second block was completed and how many
answers were correct in each block. No time restriction was provided for this
task.

Participants who refused the entire module before they were asked the first
number series, have code -3 in the variable q1i615re.  They also get the code
-3 for each of the 15 individual questions (q1i600re - q1i614re).  People who
refused the module after they heard at least one of the questions are coded -10
for the first question in which they refused and are coded -3 for every
subsequent question.


More information about these measures can be found here:  
http://alpha.fdu.edu/psychology/woodcock_cog_descrip.htm


BRIEF VARIABLE DESCRIPTIONS

    Variable names do not reflect actual item numbers from the original
    McArdle & Woodcock test in any way. Numbers within the variable 
    names correspond to the order in which the questions were asked or 
    potentially asked.
    _____________________________________________________________________


    q1i600re-q1i614re:      Variables indicating participant's responses 
                            to number series questions.

    q1i600ret-q1i614ret:    Variables indicating the amount of time it 
                            took to answer questions corresponding with 
                            variable name.

    q1i615re:               Variable gives a number (0-3) that indicates 
                            the number of correct questions out of the 
                            first three and determines the route taken in 
                            the second half of number series task.

    q1i616re:               What group of questions participant received 
                            and global refusal during introduction.

    q1i621re:               NS Rasch Score, determined by the correct 
                            answers provided on two sets of questions.

    q1i622re:               Simple Score, determined by adding the number 
                            of correct answers together, extra points 
                            given for harder questions.

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