Table 45 Person measures after each item

 

Table 45 Plot of "Masterchef" Measures, 2017. Horizontal lines for lower persons are bridging missing data.

 

 

Table 45 shows the measures and fit statistics for the persons after the administration of each item, starting with the first item. This is useful for tracking how the person measures change as the items are administered. The item difficulties are based on all the items and persons.

 

          CUMULATIVE KID MEASURES AFTER EACH ACT

 --------------------------------------------------------------------------------------------------------------------------

| KID    | 1 -1.49  Watch birds                     | 2 -1.49 Read books on animals            | KID                     |

| NUMBER | SCORE COUNT OBS MEASURE M.S.E. IMSQ OMSQ | SCORE COUNT OBS MEASURE M.S.E. IMSQ OMSQ | LABEL                   |

|--------+------------------------------------------+------------------------------------------+-------------------------|

|      1 |     1     1   1   -1.47   4.50  .00  .00 |     3     2   2    2.17   1.41 1.00 1.00 | M Rossner, Marc Daniel  |

|      2 |     2     1   2    3.01   2.18  .00  .00 |     4     2   2    3.90   1.98  .00  .00 | M Rossner, Lawrence F.  |

|      3 |     2     1   2    3.01   2.18  .00  .00 |     4     2   2    3.90   1.98  .00  .00 | M Rossner, Toby G.      |

|      4 |     1     1   1   -1.47   4.50  .00  .00 |     1     2   0   -5.14   1.41 1.00 1.00 | M Rossner, Michael T.   |

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The displayed fields are controlled by T45OPTIONS= and the Table 45 dialog box.

 

Field

Meaning

Table 45

Table 45 Plot

KID NUMBER

Person entry number in data file

First column

in first column of Excel Worksheet

1

Item entry number in data file

Top row

x-axis of plot and second row of worksheet

-1.49

Item difficulty

Top row

 

Watch birds

Item label (name)

Top row

 

SCORE

total score by person so far

T45OPTIONS=1??????

y-axis choice

COUNT

total count of valid observations so far

T45OPTIONS=?1?????

y-axis choice

OBS

scored observation. Missing is usually blank or "."

T45OPTIONS=??1????

y-axis choice

MEASURE

estimated person measure so far

T45OPTIONS=???1???

y-axis choice

M.S.E.

R.S.E.

"Model" standard error of the measure assuming data fit the Rasch model.

"Real" standard error of the measure assuming data misfit the Rasch model when REALSE=Yes

T45OPTIONS=????1??

y-axis choice

IMSQ

Infit mean-square fit statistic

T45OPTIONS=?????1?

y-axis choice

OMSQ

Outfit mean-square fit statistic

T45OPTIONS=??????1

y-axis choice

KID LABEL

Person label (name)

"Person Label field" column selection in dialog box.

"Person Legend field" column selection in dialog box. Last column of worksheet.

In dialog box:


 


Start at first observation

Are values reported in cells with missing (not administered) observations?

values for items before the first valid observation are displayed as missing "." or not plotted

Skip missing observations

values for items after the first valid observation and before the last valid observation are displayed as missing "." or not plotted

End at last observation

values for items after the last valid observation are displayed as missing "." or not plotted

Omit extreme items


 

Extreme, unanchored items are omitted from the plot. They do not change the measures, S.E.s or Mean-Squares.

(Sort order)

Sequence of persons displayed.

Person entry order

Person Legends are ordered by last displayed value which is in "Sort" column of worksheet

 

 


Help for Winsteps Rasch Measurement Software: www.winsteps.com. Author: John Michael Linacre