data analysis

Greg Trafton gtrafton at osf1.gmu.edu
Thu Oct 16 19:33:51 UTC 2003


Hi, All.  I used eprime for a study several months ago.  alas, I no
longer have access to the data analysis programs and am a bit confused
by the data.  part of it is below.

I understand Graph.RESP (the answer the subject gave me).

however, Graph.RT and Graph.RTTime seem to be "odd" -- I haven't
checked every file, but on average, this participant is taking about
10000 RT (I assume it's in ms), which is *much* longer than I would
have expected.  so my questions are:
  1) is Graph.RT really ms?  if not, how do I convert it to ms?
  2) what is the diff between RT and RTTime (if I subtract
Graph.RTTime2 from Graph.RTTime1 (consecutive subtractions), I get a
number that's close Graph.RT number (but always slightly bigger)
  3) how do I figure out how long it took to enter each answer?

thanks!
greg

Subject	      filename	   Graph.RESP	Graph.RT	Graph.RTTime
1	      example.line.ro.890.1.bmp	NULL		NULL	NULL
1	      example.line.ro.305.4.bmp	NULL		NULL	NULL
1	      example.log.ro.227.6.12.100.200.0.5.bmp	NULL	NULL NULL
1	example.log.ro.733.11.400.700.1.bmp	NULL	NULL	NULL
1	example.sin.far.193.6.45.0.37.bmp	NULL	NULL	NULL
1	example.sin.far.187.4.25.0.33.bmp	NULL	NULL	NULL
1	demo.line.far.430.1.bmp			440	24568 7620724
1	demo.line.ro.282.5.4.bmp	285	39914	7672700
1	demo.sin.ro.160.2.25.0.33.bmp	125	45722	7719915
1	demo.sin.near.105.45.0.37.bmp	137	12438	7733609
1	demo.log.far.948.2.11.750.900.1.bmp	945	23141 7757950
1	demo.log.near.482.5.12.150.450.0.5.bmp	481	24069 7782678
1	h.line.ro.433.3.1.5.bmp	432	21175	7838177
1	a.sin.far.150.1.40.0.26.bmp	159	10950	7850569
1	c.line.ro.339.2.2.4.bmp		340	16038	7867188
1	b.line.near.321.7.1.2.bmp	308	17652	7885414
1	i.line.far.390.3.bmp		372	8526	7894983
1	e.log.near.310.2.3.750.300.1.bmp	309	13958 7909581
1	b.sin.far.180.5.20.0.32.bmp	198	11486	7921707
1	j.log.far.315.2.3.100.300.2.bmp	312	15252	7937496
1	b.line.near.405.2.bmp		400	7705	7945835
1	j.line.ro.329.1.2.2.bmp		339	15416	7962080
1	j.sin.near.273.5.50.0.29.bmp	230	13780	7977150
1	k.line.far.543.3.1.2.bmp	500	29025	8007250
1	f.sin.near.166.8.40.0.38.bmp	170	5070	8012737
1	b.log.far.137.2.8.5.550.100.1.bmp	140	9421	8022649



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