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1 rrata Itms with astrisks will still b in th Scond Printing Author wbsit URL: P7. Th squar root of rfrrd to (i.., is rfrrd to not Th squar root of (i.., P8. A narrow intrval indicats comparativly lss uncrtainty about a not A narrow intrval indicats comparativly lss crtainty about a P8. Thr ar two quations listd as.. Th scond. quation should b labld.. P8. quation.3 should b ( α% CB : ˆ θ ± z ˆ ( α / ( θ is P64. To summariz our analyss, th nonlinar factor analysis providd support that a unidimnsional modl of th data is a rasonabl rprsntation [ ] th data. [of] is missing P73. quation 4.. & n r = p ( X x, ϑν, N r i =.645 =.79 =.645 = P79. Tabl 4.. PSD( ˆ θ PSD( ˆ θ P86. Lin : Should rad: A(X = =.7648 P86. Lin 7: α + α should b α + α P9. Lin 6: IFNAM= C:\MATHRSCH.dat should b IFNAM= C:\MATHRSCH.PAR P9. (ust blow quation 4.7. (or θ is th targt mtric. ξ is th P93. quation 4. should rad κ = (or θ is th ζ on th targt mtric P. (ust abov Figur 5.. p( x= θα,, p( x = θα,, ξ is th Last updatd 3/5/3

2 P. quation 5.5. p α ( θ α ( θ ' α ( θ α ( θ α ( θ ( ( P4. R = =.3 R = = P43. quation 6.8. Thr is no closing parnthsis or th opning parnthsis may nd to b rmovd. P6. Th last lin. quation 6. quation 6. P65. ( θ ( θ θ ϕ P65. Scond paragraph, last sntnc should rad Th probability of both of ths is givn by ( θ adding th (mutually xclusiv vnts of and, that is,. P65. Third paragraph, fourth and fifth sntncs should rad Thrfor, to obtain an x = th individual passs through x = (i.., ( θ, passs through x = (i..,, and thn ( θ + ( θ passs through th scond transition point (i..,. Thrfor, th probability of x = ( θ + ( θ is givn by. P65. Fourth paragraph, first sntnc should rad Whn ach of th thr trms (i.., x = : ( θ, x = : ( θ + ( θ, x = : is P65. Figur 7.: ( θ panl a: panl b: Thrfor, Figur 7. should appar as: x = x = x = θ + θ panl c: ( ( (a (b (c + ( θ + ( θ + ( θ θ Last updatd 3/5/3

3 P7. Tabl 7. 'NXAMINS=3' should b 'NXAMINS=94' P77. Th last paragraph. Thr is no A, B, and C in Figur 7.7. Figur 7.7A, Figur 7.7B, and Figur 7.7C corrspond to th top, middl, and bottom graphs, rspctivly. P97. th lin from th bottom..3 logit. logit (-9.6 = th lin from th bottom. strongly agr strongly disagr P99. 9 th lin from th top. rspondnts. 45 rspondnts (8 popl/4 catgoris=45 P. First full paragraph, first sntnc: an itm k s should b an itm h s and in th last sntnc of this paragraph substituting k = -τ k should b substituting h = -τ h P. Figur 8. α S should b α. P5. 4 th lin from th top. th approximat rang of -.57 to.3 th approximat rang of -.88 to.3 (itm 6 s = -.88 { ' x } P3. quation 8.8 should b: I x ' ' x x+ x x x+ p P P ( θ = = p P P P3. Th first quation aftr so that in th bottom half of this pag should b: α ( θ α ( θ ' ' ' p = [ P P ] = α =α P3. Th first quation should b: α ( θ α ( θ ' ' ' p = [ P P ] α α ( θ α ( θ P34. quation 8.. xk xk Last updatd 3/5/3

4 P5. Th claus aftr th smicolon should rad: " in this cas th corrsponding HIGH catgory idntification dos not nd to b changd (i.., HIGH=(,3,4,3." P5. Last lin of th paragraph that continus from p. 5:..; w us th lnl valu blow. should rad..; w us th -lnl valu blow. P66. First full paragraph, lin 5:.. th diffrnc chi-squar is = 9. should rad.. th diffrnc chi-squar is = 9. P66. Scond to last sntnc in th first full paragraph: With a critical X of should b With a critical X of (i.., chi squar is not italicizd P79. 9 th lin from th bottom. According to Figur.3, th rightmost lin is rlatd to p =.95 instad of p =.9 α κ α κ P94. γ = γ γ = γ ζ ζ ( ( P96. Tabl. s Not should rad Nam=intrprsnl.inp P33. quation.6 should rad κ = ζ P3. Tabl.3: Th initial valu of th K should b. not.. Thrfor, INITIAL VALU FOR A=.8 INITIAL VALU FOR K=. should b INITIAL VALU FOR A=.8 INITIAL VALU FOR K=. P33. Th TSW G DIF approach can b prformd using ithr MULTILOG or IRTLRDIF (Thissn, D. (. IRTLRDIF v.b: Softwar for th computation of th statistics involvd in itm rspons thory liklihood-ratio tsts for diffrntial itm functioning [Computr softwar and manual]. Chapl Hill: L.L. Thurston Psychomtric Laboratory, Univrsity of North Carolina. P338. Th G should rad 4.47 not Last updatd 3/5/3

5 P th lin from th top. if q =, thn =, and if q = N, thn = - P357. First quation: ngativ sign in from of q : ln L(x q p N t ( t = + i i= P358. B.4 s subscripts ar not formattd proprly. It should appar as: ( ˆ = L X= n p ( p X X X P37. Th last quation should b labld C.34. Th paragraph should rad: If w tak our total sampl of individuals and divid it into subgroups and w rdfin th standard dviation in quation C.33 to b th standard dviation of a subgroup, i, with man µ i, thn its substitution into quation C. givs Thurston's mntal ag modl; w'r assuming that ach subgroup is normally distributd. That is, Thurston (95;.g., s p. 44 dvlopd a modl basd on th cumulativ normal distribution to dtrmin th proportion of individuals of a spcifid ag group corrctly rsponding to an itm. P45. quation.4. χ χ = SC SC Last updatd 3/5/3

Errata. Items with asterisks will still be in the Second Printing

Errata. Items with asterisks will still be in the Second Printing Errata Itms with astrisks will still b in th Scond Printing Author wbsit URL: http://chs.unl.du/edpsych/rjsit/hom. P7. Th squar root of rfrrd to σ E (i.., σ E is rfrrd to not Th squar root of σ E (i..,

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