this study aimed at the frequency and type of using cell-phone by high school students. the research method used was a descriptive-survey one. the statistical society included all the high school students in mazandran in 2010-11 academic year. the sample was chosen through multi-stage stratified random sampling method and 383 subjects were selected based on kerjecie and morgan's table. a r...

the paper has been performed to review library administrators' strategic planning role to improve the library staff of medical sciences university of iran. the study is survey-descriptive. the statistical population consists of 50 library administrators working in iran medical sciences university, but 44 subjects responded to the questionnaire used to gather data. the reliability (91.7%) w...

Statistics is a broad mathematical discipline dealing with techniques for the collection, analysis, interpretation, and presentation of numerical data. Data are information used for reasoning, discussion, or calculation; data are the foundation of modern scientific inference. Data may be obtained by a formal sampling procedure, by recording responses to experimental conditions, or by observing ...

Psychometric aspects of the Dissociative Experiences Scale-II were studied with 308 American community college students. The overall DES mean was 21.70. Item-corrected correlations ranged from .30 to .62. The scale’s Cronbach Alpha was .92. There were no significant correlations between DES scores and sex or religiosity. Age was negatively and significantly correlated to DES scores (r = –.24). ...