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Hi,
I'm trying to figure out if there is a way to ascertain which blocks were presented when. I tried to sort the trial column by the order column, but it appears to be incorrect. I have 360 trials and the order column goes up to 372. Additionally, some order numbers are missing.
thanks.
Would need to see the input file. But remember that any non-block trials that were presented (e.g., instruction screens and such) will also have order numbers in there unless you assigned them a 0 for a block value. Also, trials that do not collect any response are, by default, not written to the data file unless they are assigned a negative block value (i.e., as of v2006).
Thanks for the reply. I assigned the Block values for instruction screens to 0 and every trial should have had a response.
I attached the input file and the output files.
thanks.
Hi Gary,
Ah. I think what you are seeing is that the order column takes into account ALL trials--even if you request that some not be written to the data file. If you sort by the [I]Order[/I] column, e.g., you will find that the missing order values are those representing the excluded instruction screens. The reason the values go to 372 instead of 360 is the same--you actually have 372 trials when you include the instructions. Does that make sense?
Blair