Though a strong factor is revealed, it does not appear to be related to the slogan at the bottom of the survey form, codes N, K, and L.
TABLE 24.2 Recreational Drug Survey drugs.out Apr 12 15:18 1999 INPUT: 39 PERSONS, 20 ITEMS ANALYZED: 39 PERSONS, 20 ITEMS, 5 CATS v2.91 -------------------------------------------------------------------------------- PRINCIPAL COMPONENTS (STANDARDIZED RESIDUAL) FACTOR PLOT Factor 1 explains 12.85 of 39 variance units -2 -1 0 1 2 ++---------------+---------------+---------------+---------------++ | A | .9 + | + | B | | | | | | | | | C | | | DE | | | F | .8 + | + | G| | | | | | | | | H | | .7 + | + | | | | I| | .6 + J | + | K | | F | | | A .5 + | + C | | L | T | M | | O .4 + | + R | N | .3 + | O + 1 | | P | .2 + Q| + L | | | O .1 + |R + A | | | D .0 +-------------------------------S|-------T------------------------+ I | | | N -.1 + s r + G | | | -.2 + | + | | | -.3 + | + | p q o | -.4 + | + | n | | | l | m | -.5 + j|k + | |i | | | h | -.6 + | g + | | f | | | | -.7 + | e + | d | | | b c | | | | | | a | ++---------------+---------------+---------------+---------------++ -2 -1 0 1 2 PERSON MEASURE TABLE 24.3 Recreational Drug Survey drugs.out Apr 12 15:18 1999 INPUT: 39 PERSONS, 20 ITEMS ANALYZED: 39 PERSONS, 20 ITEMS, 5 CATS v2.91 -------------------------------------------------------------------------------- FACTOR 1 FROM PRINCIPAL COMPONENT ANALYSIS OF STANDARDIZED RESIDUAL CORRELATIONS FOR PERSONS (SORTED BY LOADING) FACTOR 1 EXPLAINS 12.85 OF 39 VARIANCE UNITS +----------------------------------------------+ | | | INFIT OUTFIT| ENTRY | |FACTOR|LOADING|MEASURE MNSQ MNSQ |NUMBER PER | |------+-------+-------------------+-----------| | 1 | .90 | .00 1.35 1.22 |A 26 N26 | | 1 | .88 | .00 .74 .75 |B 1 N1 | | 1 | .85 | .28 .74 .72 |C 17 K17 | | 1 | .83 | .23 1.07 .96 |D 20 L20 | | 1 | .83 | .23 1.07 .96 |E 27 N27 | | 1 | .82 | .28 .93 .88 |F 24 N24 | | 1 | .78 | -.04 .72 .69 |G 33 N33 | | 1 | .72 | -.32 .94 .89 |H 8 K8 | | 1 | .64 | -.09 .67 .63 |I 6 K6 | | 1 | .62 | -.22 .88 .83 |J 13 L13 | | 1 | .56 | -.13 1.28 1.11 |K 2 K2 | | 1 | .47 | .38 .60 .57 |L 30 N30 | | 1 | .44 | -.27 .86 .79 |M 37 N37 | | 1 | .34 | .00 .81 .83 |N 29 N29 | | 1 | .31 | .57 .97 .99 |O 12 K12 | | 1 | .23 | .28 .76 .83 |P 25 N25 | | 1 | .22 | -.04 .82 .75 |Q 3 L3 | | 1 | .12 | .05 .67 .63 |R 21 L21 | | 1 | .00 | -.04 2.07 1.86 |S 15 L15 | | |-------+-------------------+-----------| | 1 | -.78 | .19 .92 1.00 |a 19 K19 | | 1 | -.74 | .00 2.35 2.06 |b 22 K22 | | 1 | -.74 | .38 .41 .51 |c 39 N39 | | 1 | -.71 | -.32 1.66 1.64 |d 34 N34 | | 1 | -.68 | .19 1.25 1.21 |e 16 L16 | | 1 | -.62 | .42 .57 .57 |f 10 K10 | | 1 | -.62 | .23 .83 .98 |g 32 N32 | | 1 | -.57 | .23 .84 .72 |h 18 K18 | | 1 | -.55 | .05 1.12 1.08 |i 7 L7 | | 1 | -.51 | -.09 2.08 2.25 |j 9 L9 | | 1 | -.48 | .05 .91 .97 |k 23 L23 | | 1 | -.46 | -.65 .90 1.04 |l 28 N28 | | 1 | -.45 | .14 .91 1.03 |m 5 K5 | | 1 | -.43 | -.22 1.03 1.16 |n 38 N38 | | 1 | -.34 | .63 1.67 2.28 |o 4 N4 | | 1 | -.33 | -.27 .63 .65 |p 36 N36 | | 1 | -.33 | .00 1.05 1.01 |q 14 K14 | | 1 | -.09 | .14 .63 .83 |r 11 L11 | | 1 | -.08 | .00 .27 .31 |s 31 N31 | | 1 | .00 | .47 .91 .76 |T 35 N35 | +----------------------------------------------+
Go to Top of Page
Go to Institute for Objective Measurement Page
FORUM | Rasch Measurement Forum to discuss any Rasch-related topic |
Coming Rasch-related Events | |
---|---|
Apr. 21 - 22, 2025, Mon.-Tue. | International Objective Measurement Workshop (IOMW) - Boulder, CO, www.iomw.net |
Jan. 17 - Feb. 21, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
Feb. - June, 2025 | On-line course: Introduction to Classical Test and Rasch Measurement Theories (D. Andrich, I. Marais, RUMM2030), University of Western Australia |
Feb. - June, 2025 | On-line course: Advanced Course in Rasch Measurement Theory (D. Andrich, I. Marais, RUMM2030), University of Western Australia |
May 16 - June 20, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
June 20 - July 18, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Further Topics (E. Smith, Facets), www.statistics.com |
Oct. 3 - Nov. 7, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
Our current URL is www.rasch.org
The URL of this page is www.rasch.org/comet4.htm