NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 4 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
Ertekin, Erhan; Yazici, Ersen; Delice, Ali – International Journal of Mathematical Education in Science and Technology, 2014
The aim of the present study is to determine the influence of concept definitions of cylinder and cone on primary mathematics student teachers' construction of relevant concept images. The study had a relational survey design and the participants were 238 primary mathematics student teachers. Statistical analyses implied the following: mathematics…
Descriptors: Elementary School Mathematics, Elementary School Teachers, Mathematical Concepts, Concept Formation
Peer reviewed Peer reviewed
Cox, Caryl; Mouw, John T. – Educational Studies in Mathematics, 1992
The explicit, experimental introduction of a series of logical inconsistencies is described and recommended as a means of disrupting the faulty logic and, thereby, enhancing the use of more appropriate probabilistic reasoning by graduate students enrolled in an introductory inferential statistics course. (14 references) (JJK)
Descriptors: Heuristics, Higher Education, Logical Thinking, Mathematics Education