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The phenomenon of drop-out in research: remarks and notes on method
Author/s: Emanuela Saita, Sara Molgora, Giorgia Vacchini 
Year:  2011 Issue: Language: Italian 
Pages:  23 Pg. 411-433 FullText PDF:  700 KB
DOI:  10.3280/RIP2011-004001
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Drop-out in the context of psychological research is a common and significant phenomenon. However, it is difficult to estimate its exact relevance and negative implications for research, particularly in terms of validity. The aim of this paper is thus to highlight the importance of considering participant drop-out in clinical research, in order to develop a theoretical frame for sampling technique, capable of considering those aspects that are currently barely considered. Specifically, the paper will focus on paradigms and methods in relation to sampling. Subsequently, possible explanatory and predictive variables of the phenomenon will be discussed. Finally, a longitudinal study on the transition to parenthood in primiparous couples will be presented as an example, due to its high drop-out rates after the first phase of participation.
Keywords: Sampling, drop-out, explanatory variables

Emanuela Saita, Sara Molgora, Giorgia Vacchini, The phenomenon of drop-out in research: remarks and notes on method in "RICERCHE DI PSICOLOGIA " 4/2011, pp. 411-433, DOI:10.3280/RIP2011-004001


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