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  1. Chai JH, Lo CH, Mayor J
    J Speech Lang Hear Res, 2020 10 16;63(10):3488-3500.
    PMID: 32897770 DOI: 10.1044/2020_JSLHR-20-00361
    Purpose This study introduces a framework to produce very short versions of the MacArthur-Bates Communicative Development Inventories (CDIs) by combining the Bayesian-inspired approach introduced by Mayor and Mani (2019) with an item response theory-based computerized adaptive testing that adapts to the ability of each child, in line with Makransky et al. (2016). Method We evaluated the performance of our approach-dynamically selecting maximally informative words from the CDI and combining parental response with prior vocabulary data-by conducting real-data simulations using four CDI versions having varying sample sizes on Wordbank-the online repository of digitalized CDIs: American English (a very large data set), Danish (a large data set), Beijing Mandarin (a medium-sized data set), and Italian (a small data set). Results Real-data simulations revealed that correlations exceeding .95 with full CDI administrations were reached with as few as 15 test items, with high levels of reliability, even when languages (e.g., Italian) possessed few digitalized administrations on Wordbank. Conclusions The current approach establishes a generic framework that produces very short (less than 20 items) adaptive early vocabulary assessments-hence considerably reducing their administration time. This approach appears to be robust even when CDIs have smaller samples in online repositories, for example, with around 50 samples per month-age.
  2. Wali HA, Mazlan R, Kei J
    J Speech Lang Hear Res, 2017 10 17;60(10):2965-2973.
    PMID: 28975265 DOI: 10.1044/2017_JSLHR-H-17-0120
    Purpose: The present study aimed to establish normative data for wideband absorbance (WBA) measured at tympanometric peak pressure (TPP) and 0 daPa and to assess the test-retest reliability of both measurements in healthy neonates.

    Method: Participants of this cross-sectional study included 99 full-term neonates (165 ears) with mean chronological age of 46.7 hrs (SD = 26.3 hrs). Of the 99 neonates, 58 were Malay, 28 were Indian, and 13 were Chinese. The neonates who passed high-frequency (1 kHz) tympanometry, acoustic stapedial reflex, and distortion product otoacoustic emission screening tests were assessed using a pressurized WBA test (wideband tympanometry). To reduce the number of measurement points, the WBA responses were averaged to 16 one-third octave frequency bands from 0.25 to 8 kHz. A mixed-model analysis of variance was applied to the data to investigate the effects of frequency, ear, gender, and ethnicity on WBA. The analysis of variance was also used to compare between WBA measured at TPP and 0 daPa. An interclass correlation coefficient test was applied at each of the 16 frequency bands to measure the test-retest reliability of WBA at TPP and 0 daPa.

    Results: Both WBA measurements at TPP and 0 daPa exhibited a multipeaked pattern with 2 maxima at 1.25-1.6 kHz and 6.3 kHz and 2 minima at 0.5 and 4 kHz. The mean WBA measured at TPP was significantly higher than that measured at 0 daPa at 0.25, 0.4, 0.5, 1.25, and 1.6 kHz only. A normative data set was developed for absorbance at TPP and at 0 daPa. There was no significant effect of ethnicity, gender, and ear on both measurements of WBA. The test-retest reliability of WBA at TPP and 0 daPa was high with the interclass correlation coefficient ranging from 0.77 to 0.97 across the frequencies.

    Conclusions: Normative data of WBA measured at TPP and 0 daPa for neonates were provided in the present study. Although WBA at TPP was slightly higher than the WBA measured at 0 daPa at some frequencies below 2 kHz, the WBA patterns of the 2 measurements were nearly identical. Moreover, the test-retest reliability of both WBA measurements was high.

  3. Rahardi RK, Rahmat W, Kurniawan Y
    J Speech Lang Hear Res, 2023 Dec 11;66(12):5036-5047.
    PMID: 37944102 DOI: 10.1044/2023_JSLHR-23-00223
    PURPOSE: This study aims to illustrate the diverse modes and implications of pseudo-directive speech acts in Javanese, specifically emphasizing the Jogjakarta area. This field of pragmatics has garnered heightened attention in recent decades. However, it is worth noting that language researchers have not thoroughly examined these pragmatic studies and have not been extensively explored in linguistics.

    METHOD: The primary data source of the study consists of excerpts of verbal expressions within the familial context. The provenance of the locational data can be traced to a familial unit with a cultural legacy deeply embedded in Javanese customs. The data were collected using observation and participation methodologies, employing advanced techniques of recording and note taking. The data were categorized and characterized to identify the various data types and formats. The tabulated results of classification and typification are presented to triangulate theory through expert validation and justification of theories. The method of contextual analysis was utilized to conduct the data analysis that relies on the pragmatic context.

    RESULTS: The study's findings indicate the following: The Javanese language encompasses various modes of pseudo-directive utterances, such as commanding, ordering, suggesting, insinuating, and recommending. In addition, the Javanese language encompasses pseudo-directive pragmatics such as warning, prohibiting, reminding, suggesting, and commanding.

    CONCLUSION: This research will significantly assist in formulating a pragmatic framework that considers cultural factors, as other linguistic phenomena in various regional languages remain unresolved.

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