NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 3 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Johnson, Wendy; Deary, Ian J.; Bouchard, Thomas J., Jr. – Educational and Psychological Measurement, 2018
Most study samples show less variability in key variables than do their source populations due most often to indirect selection into study participation associated with a wide range of personal and circumstantial characteristics. Formulas exist to correct the distortions of population-level correlations created. Formula accuracy has been tested…
Descriptors: Correlation, Sampling, Statistical Distributions, Accuracy
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Sunarty, Kustiah; Dirawan, Gufran Darma – International Education Studies, 2015
This study examines parenting and the child's independence model. The research problem is whether there is a relationship between parenting and the child's independence. The purpose of research is to determine: firstly, the type of parenting in an effort to increase the independence of the child; and the relationship between parenting models and…
Descriptors: Foreign Countries, Child Rearing, Children, Interpersonal Relationship
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Mohamed, Sanaa A. – Journal of Education and Practice, 2015
Hypospadias is a common congenital anomaly with a prevalence estimated to be as high as 1 in 125 live male births. Complications after surgical procedures are possible. The incidence of complications can be reduced by meticulous preoperative planning, and judicious postoperative care. So the aim of the study was to investigate the effect of…
Descriptors: Foreign Countries, Congenital Impairments, Biology, Mothers