Skip Navigation

Institution: LOCKSS Sign In as Personal Subscriber
Right arrow Help viewing high resolution images
Right arrow Return to article
(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Copyright restrictions may apply. Please see our Conditions of Use.

Click on image to view larger version.


Figure 2


FIGURE 2 Change in score on SPS for each group and period.





Right arrow Return to article