scholarly journals Concept identification of auditory dimensions as a function of age and sex

1966 ◽  
Vol 4 (1) ◽  
pp. 165-166 ◽  
Author(s):  
Vladimir Pishkin ◽  
Edward S. Rosenbluh
Keyword(s):  
Concept Identification ◽  
Age And Sex

Effect of Locus of Reinforcement Control on a Concept-Identification Task

1976 ◽  
Vol 39 (1) ◽  
pp. 159-165 ◽  
Author(s):  
Alan J. Litrownik ◽  
Louis R. Franzini ◽  
Daniel Skenderian
Keyword(s):  
Differential Reinforcement ◽  
Concept Identification ◽  
Extinction Phase ◽  
Control Group ◽  
Identification Task ◽  
External Reinforcement ◽  
Age And Sex

One subject from each of 20 triads matched on age and sex was randomly assigned to yoked contingent external, noncontingent external, and self-reinforcement groups. Differential reinforcement was evaluated in terms of accuracy and output of behavior during acquisition, maintenance, and extinction on a concept-identification task. Performances of the contingent self- and external reinforcement groups were equivalent during acquisition and maintenance, while superior to the noncontingent control group. During maintenance the noncontingent group subjects continued at their same level of output and accuracy in contrast to both contingent groups who improved. Groups did not differ in their accuracy during maintenance nor during the extinction phase when all subjects, as expected, were less accurate. Contrary to previous reports, the performances (output and accuracy) of subjects who administered their own reinforcers were not more resistant to withdrawal of an available external reinforcer than subjects who had received externally controlled consequences.

Who owns a personal home page?

2003 ◽  
Vol 62 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Astrid Schütz ◽  
Franz Machilek
Keyword(s):  
Search Engine ◽  
Home Page ◽  
Sampling Strategies ◽  
Home Pages ◽  
Personal Home Pages ◽  
Age And Sex

Research on personal home pages is still rare. Many studies to date are exploratory, and the problem of drawing a sample that reflects the variety of existing home pages has not yet been solved. The present paper discusses sampling strategies and suggests a strategy based on the results retrieved by a search engine. This approach is used to draw a sample of 229 personal home pages that portray private identities. Findings on age and sex of the owners and elements characterizing the sites are reported.

Inequalities and Impact of Socioeconomic-Cultural Factors in Suicide Rates Across Italy

Crisis ◽  
2011 ◽  
Vol 32 (4) ◽  
pp. 178-185 ◽  
Author(s):  
Maurizio Pompili ◽  
Marco Innamorati ◽  
Monica Vichi ◽  
Maria Masocco ◽  
Nicola Vanacore ◽  
...  
Keyword(s):  
Suicide Rate ◽  
Age Groups ◽  
Premature Death ◽  
Mortality Rates ◽  
Mortality Data ◽  
Italian Population ◽  
Comprehensive Overview ◽  
Suicide Rates ◽  
Younger Age ◽  
Age And Sex

Background: Suicide is a major cause of premature death in Italy and occurs at different rates in the various regions. Aims: The aim of the present study was to provide a comprehensive overview of suicide in the Italian population aged 15 years and older for the years 1980–2006. Methods: Mortality data were extracted from the Italian Mortality Database. Results: Mortality rates for suicide in Italy reached a peak in 1985 and declined thereafter. The different patterns observed by age and sex indicated that the decrease in the suicide rate in Italy was initially the result of declining rates in those aged 45+ while, from 1997 on, the decrease was attributable principally to a reduction in suicide rates among the younger age groups. It was found that socioeconomic factors underlined major differences in the suicide rate across regions. Conclusions: The present study confirmed that suicide is a multifaceted phenomenon that may be determined by an array of factors. Suicide prevention should, therefore, be targeted to identifiable high-risk sociocultural groups in each country.

Age- and sex-related differences among patients with musculoskeletal pain

2009 ◽  
Author(s):  
Amanda C. Lints-Martindale ◽  
Thomas G. Dever Fitzgerald ◽  
Thomas Hadjistavropoulos
Keyword(s):  
Musculoskeletal Pain ◽  
Age And Sex

Random reinforcement in concept identification.

1968 ◽  
Vol 77 (3, Pt.1) ◽  
pp. 447-452 ◽  
Author(s):  
Tom Trabasso ◽  
Herman Staudenmayer
Keyword(s):  
Concept Identification ◽  
Random Reinforcement
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