Rapid survey methodologies are widely used for assessing immunization coverage in developing countries, approximating true stratified random sampling. Non-random ('convenience') sampling is not considered appropriate for estimating immunization coverage rates but has the advantages of low cost and expediency. We assessed the validity of a convenience sample of children presenting to a travellin...

Online Sexual Activity (OSA) is an important and growing phenomenon. Prior research in this area has been criticized on methodological grounds. This study examines the reliability of Internet research regarding online sexual activities by comparing a selected random sample to a convenience sample. Participation in the selected random sample was limited to every 1,000th visitor to the MSNBC webs...

A shortage of suitable franchisee applicants has been identified by franchisors as a major hindrance to franchise sector growth in Australia. However, there has been little investigation into this issue within the organisational choice literature. This represents an important gap in the literature. In order to explore this issue it was first necessary to determine the expectations of franchisor...

The article discusses the e ect of context on customer engagement and presents propensity to engage as an attitudinal antecedent of loyalty behaviors. We argue that customers may hold di erent propensity to engage depending on the speci!c service context, which in turnwill in"uencemore or less favorable behaviors. Data were collected through a convenience sample of 516 consumers in two settings...