In a study commissioned by the US Navy (J.P. Guilford, 1954, Psychometric Methods, 2nd Ed., New York: McGraw-Hill, p.282, and MFRM Chapter 10), three senior scientists rated seven junior scientists on five traits of creativity. Ratings ranged from 1 to 9, with 9 meaning most creative.
Facets specifications and data (in file Guilford.txt):
Title = Ratings of Scientists (Psychometric Methods p.282 Guilford 1954)
; measurement model
Facets = 3 ; three facets: judges, examinees, items
Non-centered = 1 ; examinees and items are centered on 0, judges are allowed to float
Positive = 2 ; the examinees have greater creativity with greater score
Model = ?B,?B,?,Creativity ; judges, examinees and items produce ratings on "Creativity".
; A bias/interaction analysis, ?B,?B,?, will report interactions between facets 1,
; senior scientists (judges,) and 2, junior scientists (examinees).
; log(Pnijk/Pnijk-1) = Bn - Di - Cj - Fk
; Bn = ability n, Di = difficulty i, Cj = Severity j, Fk = Challenge k,
; Pnijk = probability that child n on item i is rated by judge j with score of k.
Rating (or partial credit) scale = Creativity,R9 ;Creativity is a rating scale with possible categories 0 to 9
1 = lowest ; name of lowest observed category
5 = middle ; no need to list unnamed categories
9 = highest ; name of highest observed category
*
; for Table 4: unexpected observations
Unexpected = 2 ; report ratings if standardized residual >=|2|
Usort = (1,2,3),(3,1,2),(Z,3) ; sort and report unexpected ratings several ways (1,2,3) is Senior, Junior, Trait
; for Table 6: map of elements
Vertical = 2N,3A,2*,1L,1A ;define rulers to display and position facet elements
; for Table 7: table of measures
Arrange = m,2N,0f ; arrange tables by measure-descending for all facets,
; 2N = element number-ascending for facet 2,
; and 0f = t-statistic-descending for facet 0 (bias interactions)
Inter-rater = 1 ; facet 1 is the rater facet
; for Table 13: bias/interaction report
Zscore = 1,2 ;report biases greater in size than 1 logit or with z>2
; Output files
Score file = GUILFORD.SC ; score files .SC.1.txt, SC.2.txt and .SC.3.txt produced
; facet and element identification
Labels =
1, Senior scientists ; name of first (judge) facet
1 = Avogadro ; names of elements within senior scientist facet
2 = Brahe
3 = Cavendish
*
2,Junior Scientists ; name of second (examinee) facet
7=George ; element order does not matter
1=Anne
2=Betty
3=Chris
4=David
5=Edward
6=Fred
*
3,Traits ; name of third (item) facet
1=Attack
2=Basis
3=Clarity
4=Daring
5=Enthusiasm
*
Data=
1,1,1-5,5,5,3,5,3
1,2,1-5,9,7,5,8,5
1,3,1-5,3,3,3,7,1
1,4,1-5,7,3,1,3,3
1,5,1-5,9,7,7,8,5
1,6,1-5,3,5,3,5,1
1,7,1-5,7,7,5,5,5
2,1,1-5,6,5,4,6,3
2,2,1-5,8,7,5,7,2
2,3,1-5,4,5,3,6,6
2,4,1-5,5,6,4,5,5
2,5,1-5,2,4,3,2,3
2,6,1-5,4,4,6,4,2
2,7,1-5,3,3,5,5,4
3,1,1-5,5,5,5,7,3
3,2,1-5,7,7,5,7,5
3,3,1-5,3,5,5,5,5
3,4,1-5,5,3,3,3,1
3,5,1-5,9,7,7,7,7
3,6,1-5,3,3,3,5,3
3,7,1-5,7,7,7,5,7 ; last line of data, and end of file
or:
Dvalues = 3, 1-5 ; place 1-5 in data facet 3 location
Data=
1,1,5,5,3,5,3
|
3,7,7,7,7,5,7
or:
Data = Creativity.txt ; Text data file
or:
Data = Creativity.xls ; Excel data file
or:
Data = Creativity.sav ; SPSS data file
