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241.
MTLD,vocd-D,and HD-D: A validation study of sophisticated approaches to lexical diversity assessment 总被引:1,自引:0,他引:1
The main purpose of this study was to examine the validity of the approach to lexical diversity assessment known as the measure
of textual lexical diversity (MTLD). The index for this approach is calculated as the mean length of word strings that maintain
a criterion level of lexical variation. To validate the MTLD approach, we compared it against the performances of the primary
competing indices in the field, which include vocd-D, TTR, Maas, Yule’s K, and an HD-D index derived directly from the hypergeometric
distribution function. The comparisons involved assessments of convergent validity, divergent validity, internal validity,
and incremental validity. The results of our assessments of these indices across two separate corpora suggest three major
findings. First, MTLD performs well with respect to all four types of validity and is, in fact, the only index not found to
vary as a function of text length. Second, HD-D is a viable alternative to the vocd-D standard. And third, three of the indices—MTLD,
vocd-D (or HD-D), and Maas—appear to capture unique lexical information. We conclude by advising researchers to consider using
MTLD, vocd-D (or HD-D), and Maas in their studies, rather than any single index, noting that lexical diversity can be assessed
in many ways and each approach may be informative as to the construct under investigation. 相似文献
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246.
Delayed matching-to-sample performance: Effects of relative reinforcer frequency and of signaled versus unsignaled reinforcer magnitudes 总被引:4,自引:4,他引:0
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Six pigeons were trained on a delayed red-green matching-to-sample task that arranged four delays within sessions. Matching responses intermittently produced either 1.5-s access to food or 4.5-s access to food, and nonmatching responses produced either 1.5-s or 4.5-s blackout. Two phases were conducted: a signaled phase in which the reinforcer magnitudes (small and large) were signaled by houselights (positioned either on the left or right of the chamber), and an unsignaled phase in which there was no correlation between reinforcer magnitude and houselight position. In both phases, the relative frequency with which red and green matching responses produced food was varied across five values. Both matching accuracy and the sensitivity of performance to the distribution of reinforcers for matching responses decreased with increasing delays in both phases. In addition, accuracy and reinforcer sensitivity were significantly lower on signaled small-reinforcer trials compared with accuracy and sensitivity values on signaled large-reinforcer trials and on both types of unsignaled trials. These results are discussed in the context of research on both nonhuman animal and human memory. 相似文献
247.
Sien Deng Danielle E. McCarthy Megan E. Piper Timothy B. Baker Daniel M. Bolt 《Multivariate behavioral research》2018,53(2):199-218
Extreme response style (ERS) has the potential to bias the measurement of intra-individual variability in psychological constructs. This paper explores such bias through a multilevel extension of a latent trait model for modeling response styles applied to repeated measures rating scale data. Modeling responses to multi-item scales of positive and negative affect collected from smokers at clinic visits following a smoking cessation attempt revealed considerable ERS bias in the intra-individual sum score variances. In addition, simulation studies suggest the magnitude and direction of bias due to ERS is heavily dependent on the mean affect level, supporting a model-based approach to the study and control of ERS effects. Application of the proposed model-based adjustment is found to improve intra-individual variability as a predictor of smoking cessation. 相似文献
248.
John McCarthy 《Journal of Creativity in Mental Health》2018,13(3):306-317
As counseling curricula evolve in future years, the idea of including the topics of creative thinking and problem-solving in coursework is explored by the researcher. These domains, along with the broader topic of creativity in general, are embedded in the counseling process and many of its theories. Reasons for consideration are discussed, including the importance of creativity to the counseling profession, the relationship between wellness and creativity, and the spanning of creativity across cultures. 相似文献
249.
Validation of a Standardized Multiple‐Choice Multicultural Competence Test: Implications for Training,Assessment, and Practice
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Angela R. Gillem Eleonora Bartoli Kristin N. Bertsch Maureen A. McCarthy Kerra Constant Sheila Marrero‐Meisky Steven J. Robbins Scarlett Bellamy 《Journal of multicultural counseling and development》2016,44(3):209-224
The Multicultural Counseling and Psychotherapy Test (MCPT), a measure of multicultural counseling competence (MCC), was validated in 2 phases. In Phase 1, the authors administered 451 test items derived from multicultural guidelines in counseling and psychology to 32 multicultural experts and 30 nonexperts. In Phase 2, the authors administered the top 50 discriminative items to licensed mental health professionals (N = 227) and compared MCPT scores to external indicators of MCC. Evidence was found for the construct validity and internal consistency reliability of the MCPT. El Test de Consejería Multicultural y Psicoterapia (MCPT, por sus siglas en inglés), una medida de la competencia en consejería multicultural (MCC, por sus siglas en inglés) fue validado en dos fases. En la Fase 1, los autores administraron 451 elementos del test derivados de las pautas multiculturales en consejería y psicología a 32 expertos multiculturales y 30 no expertos. En la Fase 2, los autores administraron los 50 elementos más discriminativos a profesionales licenciados de la salud mental (N = 227) y compararon los puntajes del MCPT con indicadores externos de MCC. Se hallaron evidencias de la validez del constructo y la fiabilidad de la consistencia interna del MCPT. 相似文献
250.
Ian M. MacFarlane Pat McCarthy Veach Janelle E. Grier Derek J. Meister Bonnie S. LeRoy 《Journal of genetic counseling》2016,25(4):742-766
Supervised clinical experiences with patients comprise a critical component of genetic counseling student education. Previous research has found genetic counseling students tend to be more anxiety prone than the general population, and anxiety related to supervision has been found in genetic counseling and related fields. The present study investigated how anxiety affects the experience of supervision for genetic counseling students. Second year genetic counseling students were invited to participate through email invitations distributed via training directors of the 33 programs accredited at the time of the study by the American Board of Genetic Counseling. An initial online survey contained the trait scale of the State-Trait Anxiety Inventory to estimate anxiety proneness in this population and an invitation to participate in a 45-minute semi-structured phone interview focusing on students’ experiences of supervision during their clinical rotations. High and low trait anxiety groups were created using STAI scores, and the groups’ interview responses were compared using consensual qualitative research methodology (CQR; Hill 2012). The high anxiety group was more likely to describe problematic supervisory relationships, appreciate the supervisor’s ability to help them when they get stuck in sessions, and feel their anxiety had a negative effect on their performance in general and in supervision. Common themes included supervisors’ balancing support and guidance, the importance of feedback, ego-centric responses, and supervisors as focal points. The results of the present study are largely consistent with current literature. Further research findings and research, practice, and training recommendations are provided. 相似文献