The M.Nursing workbook may be downloaded by clicking here.

 

Some worthy questions: how many items get mentioned in the Stats1b ? column?

 

What do the quintile plots look like? (They're no longer really quintiles as, with the mastery option on, only two groups are involved.)

 

To get a "conventional" analysis in addition to the mastery analysis, use these *CCs lines:

 

 

These lines define two subtests. They're really identical as they employ the same items, but the second *sub line does not include the word Mastery. The Stats1ul report will have just two groups, "masters" and "others", but the Stats2ul report will have the quintiles, the five groups, ranging from "lower" to "upper".

 

(Note: there's no need at all to use different colors for CCs lines, as we have done here -- but a splash of color can make the lines corresponding to each subtest easier to contemplate.)

 

Question NM29 is interesting. It has a very popular distractor, yet does not get flagged in the ? column. Its quintile plot is shown here:

 

 

Note (above) the popularity of distractor C, even in the upper group. Why isn't this distractor flagged in the corresponding Statsb report? (Refer to the corresponding Statsf report for the answer -- but first you have to download the workbook, and make changes to the CCs worksheet.)

 

What would happen to "Prop. consistent placings" if Mastery=40%? (You might be surprised.)

 

 

Now, with the CCs lines above, we'll have three subtests. The Stats3ul report will reveal the effect of Mastery=40 on "Prop. consistent placings". (The result might very well knock your socks off, even if you're not wearing any.)

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Tidbit:

 

You may encounter a bug in Lertap if you try this example. If you're told that a Statsul report cannot be made as "everyone reached mastery", be sure to specify the mastery level each time the Mastery word is used on *sub. Here, for example, put Mastery=70% in the first *sub line, should you run into this problem.