TY - JOUR
T1 - Identifying reading strategies using latent semantic analysis
T2 - Comparing semantic benchmarks
AU - Millis, Keith
AU - Kim, Hyun Jeong Joyce
AU - Todaro, Stacey
AU - Magliano, Joseph P.
AU - Wiemer-Hastings, Katja
AU - McNamara, Danielle S.
PY - 2004/5
Y1 - 2004/5
N2 - We explored methods of using latent semantic analysis (LSA) to identify reading strategies in students' self-explanations that are collected as part of a Web-based reading trainer. In this study, college students self-explained scientific texts, one sentence at a time. LSA was used to measure the similarity between the self-explanations and semantic benchmarks (groups of words and sentences that together represent reading strategies). Three types of semantic benchmarks were compared: content words, exemplars, and strategies. Discriminant analyses were used to classify global and specific reading strategies using the LSA cosines. All benchmarks contributed to the classification of general reading strategies, but the exemplars did the best in distinguishing subtle semantic differences between reading strategies. Pragmatic and theoretical concerns of using LSA are discussed.
AB - We explored methods of using latent semantic analysis (LSA) to identify reading strategies in students' self-explanations that are collected as part of a Web-based reading trainer. In this study, college students self-explained scientific texts, one sentence at a time. LSA was used to measure the similarity between the self-explanations and semantic benchmarks (groups of words and sentences that together represent reading strategies). Three types of semantic benchmarks were compared: content words, exemplars, and strategies. Discriminant analyses were used to classify global and specific reading strategies using the LSA cosines. All benchmarks contributed to the classification of general reading strategies, but the exemplars did the best in distinguishing subtle semantic differences between reading strategies. Pragmatic and theoretical concerns of using LSA are discussed.
UR - http://www.scopus.com/inward/record.url?scp=4444292281&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4444292281&partnerID=8YFLogxK
U2 - 10.3758/BF03195566
DO - 10.3758/BF03195566
M3 - Article
C2 - 15354686
AN - SCOPUS:4444292281
SN - 0743-3808
VL - 36
SP - 213
EP - 221
JO - Behavior Research Methods, Instruments, and Computers
JF - Behavior Research Methods, Instruments, and Computers
IS - 2
ER -