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Ruiz Reyes, Karen; Contreras Garcia, Jose Miguel – Statistics Education Research Journal, 2021
In statistical inference, importance of sampling is recognized as one of its key concepts, which has allowed its incorporation internationally in different curricular guidelines and specifically in the Chilean curriculum, since the first notions of sampling are introduced in 7th Grade. This paper presents an analysis of the responses to an…
Descriptors: Sampling, Secondary School Students, Statistical Inference, Foreign Countries
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Mubarik, Shujaat; Chandran, V. G. R.; Devadason, Evelyn S. – Learning Organization, 2016
Purpose: This study aims to examine the influence of relational capital quality on client loyalty, comprising both behavioral and attitudinal, in the pharmaceutical industry of Pakistan. Design/methodology/approach: The partial least squares technique is used to test the relationship using a sample of 111 pharmaceutical firms. We applied a…
Descriptors: Foreign Countries, Industry, Pharmacology, Behavior
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Namey, Emily; Guest, Greg; McKenna, Kevin; Chen, Mario – American Journal of Evaluation, 2016
Evaluators often use qualitative research methods, yet there is little evidence on the comparative cost-effectiveness of the two most commonly employed qualitative methods--in-depth interviews (IDIs) and focus groups (FGs). We performed an inductive thematic analysis of data from 40 IDIs and 40 FGs on the health-seeking behaviors of African…
Descriptors: Cost Effectiveness, Comparative Analysis, Interviews, Focus Groups
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Barratt, Monica J.; Ferris, Jason A.; Lenton, Simon – Field Methods, 2015
Online purposive samples have unknown biases and may not strictly be used to make inferences about wider populations, yet such inferences continue to occur. We compared the demographic and drug use characteristics of Australian ecstasy users from a probability (National Drug Strategy Household Survey, n = 726) and purposive sample (online survey…
Descriptors: Sampling, Validity, Drug Abuse, Probability
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Herzog, Stefan M.; Hertwig, Ralph – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2014
Individuals can partly recreate the "wisdom of crowds" within their own minds by combining nonredundant estimates they themselves have generated. Herzog and Hertwig (2009) showed that this accuracy gain could be boosted by urging people to actively think differently when generating a 2nd estimate ("dialectical bootstrapping").…
Descriptors: Sampling, Statistical Inference, Experimental Psychology, Hypothesis Testing