This study investigated principals’ leadership styles and teachers’ job performance in senior secondary schools in Ondo State, Nigeria. The study population comprised all the 281 secondary schools in the State. Out of this population, a sample of 240 senior secondary schools was taken and selected through the stratified random sampling technique. Out of the 7460 teachers (including principals) ...

Software reliability testing provided the necessary guarantee for improving software reliability level and estimation. The traditional method for generating software reliability test cases could be seen as a simple random sampling, which was randomly choosen according to the operational profile defined by Musa. The stratified sampling was well known as a complex but more accurate sampling appro...

This study was carried out to identify agroeconomic factors on adoption integrated rice-fish farming by farmers. A survey was conducted using a stratified random sampling to collect data from farmers of selected villages in Guilan province, north of Iran. The questionnaire validity and reliability ware also determined to enhance the dependability of the result. Data were collected from 184 resp...

This descriptive survey research was undertaken to study the factors affecting attitudes of agricultural faculty members towards nanotechnology. The statistical population of this study consisted of the agricultural faculty members in Iran (N=225). A sample of 144 persons was selected by using the stratified random sampling method. Data collected using a mailed questionnaire that was validated ...

Background: Evidence based medicine (EBM) is very crucial in physician’s decisions. Several studies have been conducted on EBM in Iran, but none have referred to barriers regarding EBM. Objectives: In order to address this issue, we conducted a study on physicians to determine their attitudes towards the barriers to EBM. Patients and Methods: This study was a cross-sectional analytical study. O...

BACKGROUND To investigate the prevalence of antibiotic usage in children aged <5 years with acute respiratory tract illness (ARTI) in Iran. MATERIALS AND METHODS Data were collected from a national health survey conducted in 2010 (Iran's Multiple Indicator Demographic and Health Survey). Participants of this cross-sectional study were selected by multistage stratified cluster-random sampling ...

BACKGROUND Nonrandom sampling of populations in developing nations has limitations and can inaccurately estimate health phenomena, especially among hard-to-reach populations such as rural residents. However, random sampling of rural populations in developing nations can be challenged by incomplete enumeration of the base population. METHODS We describe a stratified random sampling method usin...

the main purpose of this descriptive- correlative research was to study of the effect of organizational culture components on knowledge management in agricultural consulting, technical and engineering services ventures (actesv). the statistical population of the research consisted of all experts in the actesv in zanjan province (n= 301). according to the bartlett, et al. (2001), a sample size o...

The purpose of this study was to determine the condition cyberbullying that happened city Batam, especially during ongoing Covid-19 pandemic. types research we use are qualitative and quantitative. This conducted with many respondents a total 250 respondents. sampling technique used is Cluster &amp; Stratified Random Sampling technique. results showed 30.8% often experienced or encountered case...