The study is based on Overcoming Business Challenges Survey of managing directors and chief executive officers of 536 firms in three industries: real estate development, information technology (IT), and furniture manufacturing in Bangladesh. The survey adopted stratified random sampling techniques to ...
Fig. 2: Kaplan-Meier for cumulative incidence of psychiatric disorders among aged 18 and over stratified by SARS with log-rank test. The solid line means the cumulative incidence of psychiatric disorders of the patients with SARS. The dotted line means the cumulative incidence of psychiatric disord...
The data were analysed in the Comprehensive Meta-Analysis software (V2.0, Biostat, Englewood, New Jersey). For every stratified analysis, we tested the significance of heterogeneity by the Cochran'sQstatistics (p< 0.10 indicates significant heterogeneity) and the level of heterogeneity was assessed b...
Data on the effects of conservation on human well-being is currently scattered across multiple sources, many of which are inaccessible to policy makers and other decision makers [37]. In the absence of a more comprehensive evidence base, anecdotal evidence is frequently used to support or refute ...
Publication bias was tested by the Begg and Mazumdar rank correlation (p < 0.05 on the Kendall's tau indicates significant publication bias) where three or more studies contributed to a stratified analysis [21]. Heterogeneity in meta-analysis is a test of the variation between studies. A high...
The Kaplan-Meier method was used to calculate the cumulative survival rate, which was then stratified by gender and by period (1994–1999 versus 2000–2004). The clinico-pathological variables that might affect CRC survival were analyzed by Cox regression analysis. Results Between 1994 and 2004, ...
The stratified random sampling technique was employed with both local and foreign courier companies included. For local ones, those that have operated for at least 10 years were selected, while for foreign ones, it was at least 5 years. The personnel who were involved in logistics and courier ...
This means not flattening the difference between race (master social status and relational positionality in a racially stratified society based on the social meanings ascribed to a conglomeration of one's physical characteristics, including skin color, facial features and hair texture) and origin (...
What is a controlled experiment? What is TFR in environmental science? What is an anecdote in science? What variable is predicted by the hypothesis? What is an experiment in which all factors are identical except the one being tested? What is a stratified sample? What types of data do weath...
What is the effect of increasing sample size on the cost of collecting data and the quality of the data collected? What are the differences and similarities between cluster and stratified sampling? A researcher writes, "Before the study we set our alpha level at 0.01. The ...