This lesson will describe the various Settings available for use when scanning with GradeCam.
Having trouble scanning? Please view our "Scanning Troubleshooting" help documents for further assistance.
Where to start
Go to Assessments > View Assessments and select an assessment from the list. Once in the assessment, select to Scan Student Responses. This will load the GradeCam scanning page and scanning window. Under the scanning window, click Tools > Settings.
1. Selected Camera
Allows you to pick a particular camera connected to your system that you wish to use to scan. Be sure to plug the camera in before opening your web browser.
2. Flip Image
Allows you to flip your camera image 180 degrees. The sheets should be right side up (not upside down) when viewed in the GradeCam window. Adjust accordingly.
3. Prompt me for unexpected blanks and/or multiples
Allows you to control whether or not GradeCam will pop-up unexpected answers (blanks and multiples). Unchecking this setting will decrease the number of times this pop-up will appear, since it will no longer prompt you for unexpected blanks or multiples.
This setting is useful when scanning results for younger students who may not have filled out every question and for test where students have bubbled in answers using pen (since erroneously marked answer cannot be removed). With this setting on, GradeCam will look at your answer key to determine the number of filled in bubbles for each correct answer and compare to the selected answers on the student's answer sheet. If the answer is blank or if the multiplicity is higher than expected, GradeCam will prompt you. For example, if the correct answer is A, but a student as marked AE, the multiplicity of the correct answer is 1 and the student marked answer is 2. Since the multiplicity is higher than expected, the GradeCam prompt will appear.
4. SDK Version (AKA What version of GradeCam are you using?)
This is the SDK that Illuminate has been using for the longest time. In the past, when GradeCam released versions of SDK and different APIs, we were always reluctant in implementing them immediately. The ‘Current' SDK is the most stable version of GradeCam and does not house any new fixes that GradeCam releases. The fixes that they implement aren't exactly known, so we stick to this version. However, this ‘Current’ SDK cannot be used with the API that they released a few months where there is a new logic in place.
This is where GradeCam releases all their new versions of the plugin. There was a known issue with scanning with multiple blanks and this Beta fixes that issue. Anything that GradeCam releases, tests and pushes out will go straight to this SDK. This is their release to fix bugs and eventually will become our ‘Current’ version in a few months time. This version of the SDK contains their newest API and it uses a newer logic to process scans. We would recommend this version over the 'Current' since it uses the new API. Additionally, it is recommended to be used with the Browser NoPlugin. If you use the NoPlugin, you will notice the constant ‘Continue Without’ option that you have to select at all times. Well, with the BETA, it bypasses this constant selecting and just loads the GradeCam logo.
This is the brand new version of SDK that GradeCam created just for Illuminate with the sole purpose of enhancing scanning from a file. We were concerned with the slow scanning ability of Alpha. Currently only a handful of users experience the problem with scanning from a file. Without getting too technical, essentially the problem with the file was due to the degradation of the black box when the image is processed from the paper to the file. It leaves a grayish inner line that GradeCam cannot process and it spits out the error of “Error Processing File”. In short, Alpha is the same version as Beta, but with an enhanced file processing protocol.
5. Click Done, Return to Sanning once changes have been made.
Click Advanced to see more ways in which you can control scanning.
1. GradeCam should "think" about marks for no more than
This controls the maximum time GradeCam will spend trying solve problems it encounters. When GradeCam suspects there could be an issue with bubbling, it will try to improve the accuracy for no longer than the set amount of seconds. If after this amount of time GradeCam cannot confidently and accurately read the form, it will pop up the dialog box, prompting you to intervene and "help" it figure out the questionable bubbles. If GradeCam is able to read all bubbled answers within this amount of time, it will scan as soon as possible and no pop-up prompt will appear. If you want to use standard/default time, select 3 Seconds.
2. My trust level in GradeCam's ability to resolve issues is
This controls the maximum predicted error probability with which GradeCam will determine which answers are bubbled (in other words, its sensitivity to error). This impacts the frequency with which the pop-up window can appear (prompting you to indicate which answers to use when GradeCam can't determine 1 or more bubbled answers). Thus, the smaller the chance of error, the more frequently the pop-up prompt can appear. If you want to use standard/default sensitivity, select .001 - Moderate - Normal Popup Activity
TIP: Once you are assured of GradeCam's accuracy, you can adjust the default settings to help improve scanning speed.
Settings stored in the user's account vs. settings stored on each computer
The following settings are saved in the user's login account. This means they will be available from whichever computer that you log into with your user account. The saved settings are:
Prompt me for unexpected blanks and/or multiples
GradeCam should "think" about the marks for no more than:
My trust level in GradeCam's ability to resolve issues is:
The following settings could vary depending on which computer a user was logged in to so we have decided to still store them as cookies. The settings stored cookies are:
When finished making any Advanced scanning changes, click Save, back to General Settings.
Once you are ready to start scanning, you might want to see the "Scan Student Responses with GradeCam" lesson for guidance.