u-magnitude differences between single-epoch photometry in December 2010 and median light curve photometry in February 2012 are compared to the semi-amplitudes of u-band light curves from February 2012 monitoring for WTTS (blue squares), CTTS (magenta circles), and CTTS accretion-dominated (orange dots) and extinction-dominated (green triangles) subgroups. The equality line is traced in black to guide the eye.
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