Hi Jennifer,
Ok, I see. Thank you so much for your detailed and very helpful reply! :) Best regards, Xinyang At 2018-07-07 02:23:01, "Elam, Jennifer" <e...@wustl.edu> wrote: Hi Xinyang, From the NIH Toolbox website: Some PROMIS domains (processing speed is a PROMIS measurement) have multiple versions of instruments (i.e. v1.0, v1.1, v2.0). Generally, it is recommended that you use the most recent version available which can be identified as the instrument with the highest version number. In most cases, an instrument that has a decimal increase (v1.0 to v1.1) retains the same item-level parameters as well as instrument reliability and validity. From the Processing Speed Test description in the NIH Toolbox Scoring and Interpretation Manual 9-27-12 (versions that were used for HCP Young Adult): Scoring Process: The participant’s raw score is the number of items answered correctly in a 90-second period, with a range of 0-130. This score is then converted to the Toolbox normative scale scores. With that information, I would say that the difference between v1.0 and 1.1 is probably not consequential and the reason that you see a range of numbers of trials for the subjects is that they completed a different number of items within the 90 second measurement period. If you want more information, you will have to contact the NIH Toolbox support team at h...@nihtoolbox.org or perhaps their support is now fully switched over to h...@healthmeasures.net. Best, Jenn Jennifer Elam, Ph.D. Scientific Outreach, Human Connectome Project Washington University School of Medicine Department of Neuroscience, Box 8108 660 South Euclid Avenue St. Louis, MO 63110 314-362-9387 e...@wustl.edu www.humanconnectome.org From:hcp-users-boun...@humanconnectome.org <hcp-users-boun...@humanconnectome.org> on behalf of Xinyang Liu <xinyang_ie...@163.com> Sent: Friday, July 6, 2018 5:52 AM To: HCP 讨论组 Subject: [HCP-Users] questions about the out-scanner NIH Processing speed task Dear HCP experts, Hi. We are currently looking at the out-scanner behavioral data. There are two questions about the NIH Processing speed task: 1. In the Processing speed raw data, there are two similar task names. One is "NIH TB Pattern Comparison Processing Speed Age 7+", the other is "NIH TB Pattern Comparison Process Speed 7+ v 1.1". Could you please tell whether these two groups of measurements are the same for this task? 2. Also in this task, we found that the trial number varies a lot across participants, not like in other tasks where the trial numbers are consistently the same within one task. Could we ask why? Any of your kind guidance would be very appreciated. Thank you very much. Best regards, Xinyang _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
