Test Construction Review Questions
And Answers
An bitem bdifficulty bindex b(p) bis bcalculated bby bdividing bthe bnumber bof bexaminees
bwho banswered bthe bitem bcorrectly bby bthe bBLANK. b- bcorrect banswers✔✔total
bnumber bof bexaminees
An bitem bdifficulty bindex b(p) branges bin bvalue bfrom bBLANK. b- bcorrect banswers✔✔0
bto b1.0
an bitem bdifficulty blevel bof bBLANK bis bpreferred bbecause bit bnot bonly bmaximizes
bdiscrimination bbetween bexaminees bof blow band bhigh bability bbut balso bhelps bensure
bthat bthe btest bhas bhigh breliability. b- bcorrect banswers✔✔.50
an bitem bdifficulty blevel bof b.50 bis bpreferred bbecause bit bnot bonly bmaximizes bBLANK
bbetween bexaminees bof blow band bhigh bability bbut balso bhelps bensure bthat bthe btest
bhas bhigh breliability. b- bcorrect banswers✔✔discrimination
an bitem bdifficulty blevel bof b.50 bis bpreferred bbecause bit bnot bonly bmaximizes
bdiscrimination bbetween bexaminees bof blow band bhigh bability bbut balso bhelps bensure
bthat bthe btest bhas bhigh bBLANK. b- bcorrect banswers✔✔reliability
the boptimal bp bvalue bfor btrue/false bitems bis bBLANK. b- bcorrect banswers✔✔.75
An bBLANK bindex b(D) bin bitem banalysis bis bcalculated bby bsubtracting bthe bpercent bof
bexaminees bin bthe blower-scoring bgroup bform bthe bpercent bof bexaminees bin bthe
bupper-scoring bgroup bwho banswered bthe bitem bcorrectly. b- bcorrect banswers✔✔item
bdiscrimination
An bitem bdiscrimination bindex b(D) branges bin bvalue bfrom bBLANK. b- bcorrect
banswers✔✔-1.0 bto b+1.0
Advantages bof bitem bresponse btheory b(IRT) bare bthat bitem bparameters bare bBLANK
binvariant band bperformance bon bdifferent bsets bof bitems bor btests bcan bbe beasily
bequated. b- bcorrect banswers✔✔sample
, Advantages bof bitem bresponse btheory b(IRT) bare bthat bitem bparameters bare bsample
binvariant band bperformance bon bdifferent bsets bof bitems bor btests bcan bbe beasily
bBLANK. b- bcorrect banswers✔✔equated
Use bof bIRT binvolves bderiving ban bitem bBLANK bfor beach bitem bthat bprovides
binformation bon bone, btwo, bor bthree bparameters b- bi.e., bdifficulty, bdiscrimination, band
bprobability bof bguessing bcorrectly. b- bcorrect banswers✔✔characteristic bcurve
Use bof bIRT binvolves bderiving ban bitem bcharacteristic bcurve bfor beach bitem bthat
bprovides binformation bon bone, btwo, bor bthree bparameters b- bi.e., bdifficulty,
bdiscrimination, band bBLANK. b- bcorrect banswers✔✔probability bof bguessing bcorrectly
From bthe bperspective bof bBLANK btest btheory, bvariability bin btest bscores breflects btwo
bfactors: btrue bdifferences bbetween bexaminees bon bthe battribute bmeasured bby bthe
btest band bdifferences bdue bto bmeasurement b(random) berror. b- bcorrect
banswers✔✔classical
From bthe bperspective bof bclassical btest btheory, bvariability bin btest bscores breflects
btwo bfactors: btrue bdifferences bbetween bexaminees bon bthe battribute bmeasured bby
bthe btest band bdifferences bdue bto bBLANK. b- bcorrect banswers✔✔measurement berror
Reliability bis ba bmeasure bof bthe bamount bof bvariability bin bobtained btest bscores bthat
bis bdue bto bBLANK bvariability. b- bcorrect banswers✔✔true bscore
A btest's breliability bis bcommonly bestimated bby bcalculating ba breliability bcoefficient,
bwhich bis ba btype bof bBLANK bcoefficient. b- bcorrect banswers✔✔correlation
The breliability bcoefficient branges bin bvalue bfrom bBLANK band bis binterpreted bdirectly
bas ba bmeasure bof btrue bscore bvariability. b- bcorrect banswers✔✔0 bto b+1.0
The breliability bcoefficient branges bin bvalue bfrom b0 bto b+1.0 band bis binterpreted
bdirectly bas ba bmeasure bof bBLANK bvariability. b- bcorrect banswers✔✔true bscore
if ba btest bhas ba breliability bcoefficient bof b.91, bthis bmeans bthat bBLANK b% bof
bvariability bin bobtained btest bscores bis bdue bto btrue bscore bvariability, bwhile bthe
bremaining b% breflects bmeasurement berror. b- bcorrect banswers✔✔91
if ba btest bhas ba breliability bcoefficient bof b.91, bthis bmeans bthat b91% bof bvariability bin
bobtained btest bscores bis bdue bto bBLANK bvariability, bwhile bthe bremaining b9%
breflects bmeasurement berror. b- bcorrect banswers✔✔true bscore
if ba btest bhas ba breliability bcoefficient bof b.91, bthis bmeans bthat b91% bof bvariability bin
bobtained btest bscores bis bdue bto btrue bscore bvariability, bwhile bthe bremaining b9%
breflects bBLANK. b- bcorrect banswers✔✔measurement berror
And Answers
An bitem bdifficulty bindex b(p) bis bcalculated bby bdividing bthe bnumber bof bexaminees
bwho banswered bthe bitem bcorrectly bby bthe bBLANK. b- bcorrect banswers✔✔total
bnumber bof bexaminees
An bitem bdifficulty bindex b(p) branges bin bvalue bfrom bBLANK. b- bcorrect banswers✔✔0
bto b1.0
an bitem bdifficulty blevel bof bBLANK bis bpreferred bbecause bit bnot bonly bmaximizes
bdiscrimination bbetween bexaminees bof blow band bhigh bability bbut balso bhelps bensure
bthat bthe btest bhas bhigh breliability. b- bcorrect banswers✔✔.50
an bitem bdifficulty blevel bof b.50 bis bpreferred bbecause bit bnot bonly bmaximizes bBLANK
bbetween bexaminees bof blow band bhigh bability bbut balso bhelps bensure bthat bthe btest
bhas bhigh breliability. b- bcorrect banswers✔✔discrimination
an bitem bdifficulty blevel bof b.50 bis bpreferred bbecause bit bnot bonly bmaximizes
bdiscrimination bbetween bexaminees bof blow band bhigh bability bbut balso bhelps bensure
bthat bthe btest bhas bhigh bBLANK. b- bcorrect banswers✔✔reliability
the boptimal bp bvalue bfor btrue/false bitems bis bBLANK. b- bcorrect banswers✔✔.75
An bBLANK bindex b(D) bin bitem banalysis bis bcalculated bby bsubtracting bthe bpercent bof
bexaminees bin bthe blower-scoring bgroup bform bthe bpercent bof bexaminees bin bthe
bupper-scoring bgroup bwho banswered bthe bitem bcorrectly. b- bcorrect banswers✔✔item
bdiscrimination
An bitem bdiscrimination bindex b(D) branges bin bvalue bfrom bBLANK. b- bcorrect
banswers✔✔-1.0 bto b+1.0
Advantages bof bitem bresponse btheory b(IRT) bare bthat bitem bparameters bare bBLANK
binvariant band bperformance bon bdifferent bsets bof bitems bor btests bcan bbe beasily
bequated. b- bcorrect banswers✔✔sample
, Advantages bof bitem bresponse btheory b(IRT) bare bthat bitem bparameters bare bsample
binvariant band bperformance bon bdifferent bsets bof bitems bor btests bcan bbe beasily
bBLANK. b- bcorrect banswers✔✔equated
Use bof bIRT binvolves bderiving ban bitem bBLANK bfor beach bitem bthat bprovides
binformation bon bone, btwo, bor bthree bparameters b- bi.e., bdifficulty, bdiscrimination, band
bprobability bof bguessing bcorrectly. b- bcorrect banswers✔✔characteristic bcurve
Use bof bIRT binvolves bderiving ban bitem bcharacteristic bcurve bfor beach bitem bthat
bprovides binformation bon bone, btwo, bor bthree bparameters b- bi.e., bdifficulty,
bdiscrimination, band bBLANK. b- bcorrect banswers✔✔probability bof bguessing bcorrectly
From bthe bperspective bof bBLANK btest btheory, bvariability bin btest bscores breflects btwo
bfactors: btrue bdifferences bbetween bexaminees bon bthe battribute bmeasured bby bthe
btest band bdifferences bdue bto bmeasurement b(random) berror. b- bcorrect
banswers✔✔classical
From bthe bperspective bof bclassical btest btheory, bvariability bin btest bscores breflects
btwo bfactors: btrue bdifferences bbetween bexaminees bon bthe battribute bmeasured bby
bthe btest band bdifferences bdue bto bBLANK. b- bcorrect banswers✔✔measurement berror
Reliability bis ba bmeasure bof bthe bamount bof bvariability bin bobtained btest bscores bthat
bis bdue bto bBLANK bvariability. b- bcorrect banswers✔✔true bscore
A btest's breliability bis bcommonly bestimated bby bcalculating ba breliability bcoefficient,
bwhich bis ba btype bof bBLANK bcoefficient. b- bcorrect banswers✔✔correlation
The breliability bcoefficient branges bin bvalue bfrom bBLANK band bis binterpreted bdirectly
bas ba bmeasure bof btrue bscore bvariability. b- bcorrect banswers✔✔0 bto b+1.0
The breliability bcoefficient branges bin bvalue bfrom b0 bto b+1.0 band bis binterpreted
bdirectly bas ba bmeasure bof bBLANK bvariability. b- bcorrect banswers✔✔true bscore
if ba btest bhas ba breliability bcoefficient bof b.91, bthis bmeans bthat bBLANK b% bof
bvariability bin bobtained btest bscores bis bdue bto btrue bscore bvariability, bwhile bthe
bremaining b% breflects bmeasurement berror. b- bcorrect banswers✔✔91
if ba btest bhas ba breliability bcoefficient bof b.91, bthis bmeans bthat b91% bof bvariability bin
bobtained btest bscores bis bdue bto bBLANK bvariability, bwhile bthe bremaining b9%
breflects bmeasurement berror. b- bcorrect banswers✔✔true bscore
if ba btest bhas ba breliability bcoefficient bof b.91, bthis bmeans bthat b91% bof bvariability bin
bobtained btest bscores bis bdue bto btrue bscore bvariability, bwhile bthe bremaining b9%
breflects bBLANK. b- bcorrect banswers✔✔measurement berror
