Relationships Between Subjective Ratings and Objective Measures of Performance in Speechreading Sentences

1997 ◽  
Vol 40 (4) ◽  
pp. 900-911 ◽  
Author(s):  
Marilyn E. Demorest ◽  
Lynne E. Bernstein

Ninety-six participants with normal hearing and 63 with severe-to-profound hearing impairment viewed 100 CID Sentences (Davis & Silverman, 1970) and 100 B-E Sentences (Bernstein & Eberhardt, 1986b). Objective measures included words correct, phonemes correct, and visual-phonetic distance between the stimulus and response. Subjective ratings were made on a 7-point confidence scale. Magnitude of validity coefficients ranged from .34 to .76 across materials, measures, and groups. Participants with hearing impairment had higher levels of objective performance, higher subjective ratings, and higher validity coefficients, although there were large individual differences. Regression analyses revealed that subjective ratings are predictable from stimulus length, response length, and objective performance. The ability of speechreaders to make valid performance evaluations was interpreted in terms of contemporary word recognition models.

2005 ◽  
Vol 16 (09) ◽  
pp. 653-661
Author(s):  
Francis Kuk ◽  
Denise Keenan ◽  
Chi-Chuen Lau ◽  
Nick Dinulescu ◽  
Richard Cortez ◽  
...  

The present study compared differences in subjective and objective performance in completely-in-the-canal (CIC) hearing aids with conventional uniform 1.5 mm parallel vents and another with a reverse horn vent where the diameter increased from 1.5 mm on the lateral faceplate to 3 mm on the medial opening of the hearing aid. Nine hearing-impaired persons with a high-frequency hearing loss participated. The test battery included unaided in situ thresholds, amount of available gain before feedback, speech in quiet, speech in noise (HINT), subjective ratings of hollowness and tolerance, objective measures of the occlusion effect, and real-ear aided response. Results showed less available gain before feedback but less occlusion effect for subjective ratings and objective measures with the reverse horn vent. This type of vent design may be useful to increase the effective vent diameter of custom (including CIC) hearing aids.


1994 ◽  
Vol 74 (2) ◽  
pp. 571-578 ◽  
Author(s):  
Christopher M. Lowery ◽  
Thomas J. Krilowicz

Correlations among nontask behaviors, subjective evaluations of performance, and objective performance measures were investigated for a sample of 73 machine operators. Correlation and regression analyses indicated that nontask behaviors were significantly related to both supervisory ratings of performance and to objective measures of performance. There was also a significant relationship between the subjective and objective performance measures, but the results indicated that supervisors based their evaluations more on nontask behaviors than on actual performance.


2016 ◽  
Vol 38 (2) ◽  
pp. 457-475 ◽  
Author(s):  
JUAN HARO ◽  
PILAR FERRÉ ◽  
ROGER BOADA ◽  
JOSEP DEMESTRE

ABSTRACTThis study presents semantic ambiguity norms for 530 Spanish words. Two subjective measures of semantic ambiguity and two subjective measures of relatedness of ambiguous word meanings were collected. In addition, two objective measures of semantic ambiguity were included. Furthermore, subjective ratings were obtained for some relevant lexicosemantic variables, such as concreteness, familiarity, emotional valence, arousal, and age of acquisition. In sum, the database overcomes some of the limitations of the published databases of Spanish ambiguous words; in particular, the scarcity of measures of ambiguity, the lack of relatedness of ambiguous word meanings measures, and the absence of a set of unambiguous words. Thus, it will be very helpful for researchers interested in exploring semantic ambiguity as well as for those using semantic ambiguous words to study language processing in clinical populations.


Author(s):  
Tracy M. Maylett

This case study describes an initiative to change a long-standing performance management process at a large manufacturing facility within General Mills that emphasized the attainment of objective performance measures (the “what” of performance) to one that also included the “how” of goal achievement. The organization embarked on a 3-year pilot evaluation of the use of 360 Feedback as a possible solution to replace or supplement their traditional single-source (supervisor) performance appraisal process. The two systems ran in parallel using 140 randomly selected employees. Results showed little correlation between the what measures of performance from the traditional appraisals and the how data collected using the 360 Feedback, supporting the view that job performance should be viewed as requiring both aspects of evaluation, using different methods of assessment. Ultimately, the organization maintained both systems but integrated 360 Feedback into the traditional appraisals as well, creating complementary processes that looked “forward” (development) and “past” (performance).


Author(s):  
Elizabeth M. Mersch ◽  
Kyle J. Behymer ◽  
Gloria L. Calhoun ◽  
Heath A. Ruff ◽  
Jared S. Dewey

Video game interfaces featuring multiple distinct icons that enable a player to quickly select specific actions from a larger set of possible actions have the potential to inform the development of interfaces that enable a single operator to control multiple unmanned vehicles (UVs). The goal of this research was to examine the design of a video game inspired interface for delegating actions (called “plays”) to highly autonomous UVs. Specifically, the impact of color coding (by Play Type, by Vehicle Type, and No Color) and icon row assignment (by Play Type, by Vehicle Type, and Random) for a delegation play calling interface was evaluated in terms of participants’ performance in identifying and manually selecting a commanded play icon in an interface depicting a large set of UV plays. Both the objective performance data and subjective ratings indicated that icon row assignment impacted icon selection, whereas color coding did not. Mean icon selection time and subjective ratings were more favorable when the icons were assigned to rows in the Play Calling interface by vehicle type. Suggestions are made for follow-on research.


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S615-S615
Author(s):  
Shannon T Mejia ◽  
Katherine Hsieh ◽  
Jason Fanning ◽  
Jacob Sosnoff

Abstract An accurate understanding of one’s abilities and limitations allows adaptive response to the challenges that are faced in daily life. However, older adults may over or under estimate their actual abilities. The Daily Balance Project examined the intraindividual dynamics of older adults’ perceived balance with objective measures of balance and physical activity. For 30 consecutive days, following a comprehensive fall risk assessment, 20 older adults rated their balance confidence (Activities Balance Confidence scale) at that moment and then performed five standardized balance assessments measured via smartphone accelerometer held to their chest. Physical activity was measured with an activity monitor. Baseline measurements of fall risk differentiated the extent of intraindividual variation and co-variation of balance and physical activity. For some participants, actual and perceived balance became more closely aligned as the study progressed. The implications of the findings for life-span perspectives on aging and fall prevention are discussed.


Sign in / Sign up

Export Citation Format

Share Document