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RISS 인기검색어
- 검색키워드
- 저자 : Robert E. Owens (검색결과 2 건)
- 무료
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- 유료
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Relationships Among Conversational Language Samples and Norm-Referenced Test Scores
Robert E. Owens,Stacey L. Pavelko 한국언어재활사협회 2017 Clinical Archives of Communication Disorders Vol.2 No.1
Purpose: Research demonstrates that many speech-language pathologists (SLPs) do not routinely include language sample analysis (LSA) in their clinical practice because LSA has limited recognition as a valid assessment measure. Limited research suggests that some LSA values obtained from narrative samples correlate with the results of standardized language tests. This research examined the relationship among values obtained from conversational language samples and the results of standardized testing. Methods: This study investigated whether LSA values obtained from conversational language samples shared a relationship with the results of standardized language testing. A total of 16 children ages 43–90 months (M=61.5 months) completed three subtests of a standardized language test and a 15-minute conversational language sample. Fifty-utterance language samples were analyzed for four LSA values including mean length of utterance (MLUs), total number of words (TNW), clauses per sentence (CPS) and words per sentence (WPS). Results: Results revealed that three of the four LSA values (MLUs, TNW, and WPS) demonstrated statistically significant (ps<.006) strong correlations (rs>.65) with the results of norm-referenced language testing. The partial correlations and the zero-order correlations were significant, suggesting age had little influence in controlling for the relationships. Conclusions: Conversational language samples complement norm-referenced tests well. Results support further exploration of the relationships among LSA measures obtained from conversational samples and the results of standardized language testing.
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Sunday E. Atawodi,Joy C. Atawodi,Gabriel A. Idakwo,Beate Pfundstein,Roswitha Haubner,Gerd Wurtele,Helmut Bartsch,Robert W. Owen 한국식품영양과학회 2010 Journal of medicinal food Vol.13 No.3
Medicinal plants have been shown to have both chemopreventive and/or therapeutic effects on cancer and other diseases related to oxidative damage. Moringa oleifera Lam., known in the Hausa and Igala languages of Nigeria as “Zogale” and “Gergedi,” respectively, and drumstick in English, is a plant that is used both as food and in folkloric medicine in Nigeria and elsewhere. Different parts of the plant were analyzed for polyphenol content as well as in vitro antioxidant potential. The methanol extract of the leaves of M. oleifera contained chlorogenic acid, rutin, quercetin glucoside, and kaempferol rhamnoglucoside, whereas in the root and stem barks, several procyanidin peaks were detected. With the xanthine oxidase model system, all the extracts exhibited strong in vitro antioxidant activity, with 50% inhibitory concentration (IC50) values of 16, 30, and 38μL for the roots, leaves, and stem bark, respectively. Similarly, potent radical scavenging capacity was observed when extracts were evaluated with the 2-deoxyguanosine assay model system, with IC50 values of 40, 58, and 72μL for methanol extracts of the leaves, stem, and root barks, respectively. The high antioxidant/radical scavenging effects observed for different parts of M. oleifera appear to provide justification for their widespread therapeutic use in traditional medicine in different continents. The possibility that this high antioxidant/radical scavenging capacity may impact on the cancer chemopreventive potential of the plant must be considered.
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