Los puntos clave no están disponibles para este artículo en este momento.
This report documents trends in telephone survey dispositions for many major survey firms since the start of the “cell phone period” of survey research, roughly 2008 to the present. Findings for this period show a stark decline in productivity on landlines with some encouraging news for the future of cell phone research. _
Dutwin et al. (Mon,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: