Populi

Archive for the ‘Bloggable’ Category

Paul Ford, “The Group That Rules the Web”

Monday, November 24th, 2014
Ellsworth Kelly: Spectrum Colors Arranged by Chance III

Ellsworth Kelly: Spectrum Colors Arranged by Chance III

Paul Ford, writing in The New Yorker:

The Web started out as a way to publish and share documents. It is now an operating system: a big, digital sensory apparatus that can tell you about your phone’s battery life, record and transmit your voice, manage your e-mail and your chats, and give you games to play. It can do this all at once, and with far less grand of a design than you might assume. That’s the software industry: it promises you an Ellsworth Kelly, but it delivers a  Pollock.

Jackson Pollock: Convergence

 

Graded discussions, course equivalencies, and Library enhancements

Tuesday, November 18th, 2014

11-17-14 Graded disc

Concerning software releases, we’ve been busy the past few weeks…

Graded discussions

Graded discussions let you grade your students for their participation in a discussion. Here’s how it works:

  1. You create a new discussion-type assignment, and either use it to start a new discussion or link it to an existing discussion.
  2. You then have options to set up grading requirements, giving points for posting a minimum number of comments or replies, number of words posted, average peer rating—among many other criteria.
  3. If you wish, you can set the discussion to close on a certain date and time, after which Populi can auto-grade your students based on your grading requirements.
  4. The discussion assignment page presents all of your students’ discussion info—including comments and participation stats—so you can easily grade the assignment by hand if you so choose.

The grading features are a major part of a general overhaul of course discussions, which now include…

Peer rating

When you enable peer rating, students can rate one another’s comments and replies from one to five stars. You can include peer rating stats as a discussion grading requirement.

11-18-14 peer rating

Post first

You can now require students to post to the discussion before they can see anyone else’s comments.

11-14-18 Post first

Improved comment reporting

When students report inappropriate comments, you now have better tools to handle these reports—and more accountability for the student who submits the report.

11-18-14 comment report

Draft mode

If you’re not ready for students to know about an upcoming discussion—maybe it’s a surprise assignment, or perhaps you’re still working on the grading requirements—you can leave it in Draft mode. When you’re ready for it to get out there, just set it to Published.

11-18-14 draft mode

To get a look at everything you can do with discussions now, have a look at the Populi Knowledge Base.

Attendance

Course attendance now features ID photos (like the Roster), radio buttons for attendance status, and new action links to mark all students either Present, Absent, Tardy, or Excused.

11-18-14 attendance

Course equivalencies

In Academics, we added course equivalencies. Equivalencies are specified at the course catalog level. Effectively, this lets you substitute any course for any other in a student’s academic history. For example, say you make ENG101 an equivalent of WRI101:

  • Students who took WRI101 will show that they have completed a degree course requirement for ENG101 on the Degree Audit.
  • Students who took ENG101 will be able to register for a course that has WRI101 as a prerequisite.
  • Students who need to retake ENG101 can take WRI101 instead.
  • And vice-versa for all of the above…

Additionally, you can now use Course Groups as prerequisites for catalog courses. This lets you treat a group of courses as equivalent (take this course OR this other course…) when setting up prereqs.

11-18-14 prereq

Library enhancements

We’ve added a bunch of little (but significant!) things to Library the past few weeks:

  • Library Staff can now place holds on behalf of patrons.
  • Additionally, they can now renew loans, even if the affected resource has a hold or is overdue.
  • You can now see the due date for each resource when checking them out to a patron.
  • If you remove a copy from circulation, any holds on it will be transferred to the next available copy.
  • When placing a hold, patrons and staff can now choose which resource copy they want.
  • Library staff can now click # of holds to see a list of all the holds for a resource, and their associated data. They can also manage which resource copy the hold is on, or cancel the hold—all from the same dialog box.
  • You can now manually pull Library resources.
  • We’ve limited the resource type drop-downs on Library search to show only the resource types you currently have entered in Library.
  • Library search results now display up to five resource copies, together with their locations and call numbers if possible. So, now you can find out if there’s a copy and where to grab it without clicking through to the copy page.
  • And finally, if you hate pressing “Enter” on your keyboard for Library (and Bookstore) searches, there’s now a Go button you can click!

11-18-14 Library search

Programmatic Partial-Credit Put-In-Order Grading

Thursday, September 25th, 2014

Back in Autumn, 2009 we introduced online tests with several question types. Certain types—multiple choice for example—are simple for a computer program to grade. You just tell it what the correct answer is, and if the student marks that answer, they get the credit. Other question types, however, aren’t so simple: put-in-order, for example. Different instructors have different methods and rationales for how to assign credit for a partially correct put-in-order question, so replicating how a human would grade one is no mean feat. Or so we’ve learned over the last five years.

Our first method was simple: we’d evaluate each item in turn, and if it was before or after the item that it was supposed to be before or after then it would be counted as correct.

This did a pretty good job approximating how an instructor might give partial credit by focusing on the order of items as opposed to their placement. This method stayed in place until we discovered its principal flaw. Though highly unlikely, it was possible for an incorrect response to receive 100% credit provided each item was next to at least one correct neighbor.

When an instructor brought this to our attention last Winter (over four years since we added online tests!) we quickly revised our methodology to focus on placement. This seemed like a simple, reasonable method: imagine a teaching assistant lining up an answer key next to the student’s response and marking incorrect any item that didn’t match the key.

In reality, though, this sometimes proved much harsher than an actual professor would be, especially if the question had a larger number of options.

In fact, not long after the update an instructor showed us a rather harshly-graded 25-item put-in-order question; Populi counted 13 options as correct when the instructor would have counted 24. In light of this, we sought out another approach. The best programmatic method for giving partial credit on put-in-order questions would need to take into account more than simple placement in order to better replicate how a human teacher would grade and avoid being overly harsh or generous. After testing every method we could think of, here’s what we came up with.

The new method aims to give as much credit as is reasonable (as most instructors would) by focusing on what we’re calling chains—that is, two or more correctly-ordered items in a row. First, we locate the longest chain. Then, we use it to figure out whether or not other chains before it or after it are in order. Anything not in a chain is incorrect.

order_5

This method worked well overall, but there were a couple wrinkles to iron out. One was that the first and last items in the list are at a disadvantage when it comes to chaining: each has only one neighbor to chain with, and so are less likely to be counted as correct. This was solved by treating the top and bottom boundaries of the list as non-credit positions. In other words, if the first or last item is in the correct position it always counts as being in a chain, and receives credit.

The other wrinkle: a response could have more than one longest chain. Depending on which chain you started with it was possible to come up with a different number of points. Here, starting with the first chain leads to a lower score:

order_7

We solved this by grading the question multiple times, as it were. We look at each chain, and then look at the position of each chain in the answer. We then see which chain to use as a starting point to grant the most credit.

  • Above, starting with eight-nine-ten  would cause Populi to mark the other two chains wrong (because one-two-three and four-five-six don’t come after eight-nine-ten). This would result in a score of 30% of the possible points.
  • Below, starting with one-two-three lets us then say that four-five-six is correct (because it comes after one-two-three). This lets us mark two chains correct, giving the student more credit for the question (60%)—and thus, is preferable to the other option. Starting with four-five-six results in this same score.

order_8

There’s also a very, very remote possibility that the most credit would be awarded by starting with the second-longest chain. So we also try grading using every longest chain and every chain with one fewer item than the longest chain, just in case.

We’re happy to announce this as the new (and hopefully final) method for assigning partial credit to put-in-order questions.

Now, partial credit is, after all, just an option on a feature. But the time we spent working it out and building it is worth it. Professors rely on Populi to save them time with the mundane things (like test-grading), but some of the mundane things are hard to nail. It’s actually quite a challenge to replicate a teacher’s intuition with rigid, literal software code.

As a bonus, we now show which items were marked incorrect in the test history view so students and teachers can see how the partial-credit grade was derived.

Editor’s Note: As you suspected, Yes—the title of this article can be sung to the tune of Supercalifragilisticexpialidocious from Mary Poppins.

Way more free file storage for everyone

Tuesday, September 16th, 2014

June 18, 2013.

April 7, 2014.

Today.

Doing what we do best, we’re pleased to announce that we’ve yet again given everyone more free file storage. Have a gander at our Pricing page if you don’t believe us.

  • The Small plan just got a little less small with 1,000—count ‘em: one thousand—free gigabytes of file storage.
  • The Medium plan is even medium-er with 2,000 free gigs of file storage.
  • And the Large plan? Yup, it’s now larger: 3,000 gee-bees of file storage, included free.
  • If you manage to go over your limit, additional storage costs just 10 cents per gigabyte per month.

If you used to pay for storage above your plan’s limit, you’re probably paying nothing for those files now. And if you’ve been holding back from uploading files for fear of passing your limit, well, fear no longer—each plan has a lot of free storage.

In case you didn’t know, you can do a lot of stuff with files. You can embed audio and video files in your courses so your students can stream them anywhere on almost any device. Faculty and students can upload and exchange assignment files—and instructors can even annotate documents with feedback. Plus there’s all the humdrum stuff—files in the Activity Feed, the Files app, profile pictures, application files… and so on.

Since files are such an important part of how our customers use Populi, we’re happy to give everyone more opportunity to take full advantage of the functionality—without having to pay extra.

Electronic checks

Tuesday, August 12th, 2014

You can now use Populi to accept electronic checks for online payments!

Screen Shot 2014-05-05 at 5.50.51 PM

Electronic checks let you accept online payments straight from the payer’s checking account. To pay, just enter a routing number, an amount, and some other basic info—like what you’d find on a paper check—and click Pay Now. It’s pretty simple for the payer. On your end, the fees are lower than credit/debit card transactions, and the turnaround time is a fraction of that of paper checks.

To get set up with electronic checks, you’ll need to sign up for eCheck.net, an add-on product for Authorize.net payment gateway accounts. If you’re already using Populi with Authorize.net for credit card processing, you’re most of the way there. Just visit Authorize.net’s Merchant Services page and start your application. Once approved, get in touch with Populi Support and let us know you’d like to enable electronic checks.

Read more about setting up Online Bill Pay in the Populi Knowledge Base.

New course and gradebook features

Tuesday, July 15th, 2014

The Populi development team released a heap of highly-requested assignment and gradebook features last night, including:

  • Extra credit assignments
  • Attendance assignments
  • Drop lowest grade options
  • Student feedback on all assignment types
  • Document viewer with annotations on file assignments
  • Improved gradebook navigation
  • New global minimum attendance settings in Academics

We’ll be going into greater detail on all of these new features in the coming days, but for now, here’s a video covering five of our favorites. Enjoy!

New stuff: master change log, logins report, online payments settings, and more

Monday, July 7th, 2014

We recently released a number of new reporting items users have been asking for.

MCL

First, a master change log: Account Admins can now go to the new Reporting > Changes tab in Account and create detailed reports of just about any change made to any person—including what kind of action it was, when it was made, and who made it.

Next, one tab over from Changes, you’ll find the new Logins report, which lets you get login details—everything from username to IP address—for any timeframe you need.

On the Profile’s Activity Feed, you can now see admissions-related changes—status changes, application updates, questions, and more:

Screen Shot 2014-06-26 at 1.17.07 PM

And over in Financial, the new Online Payments tab in Financial > Settings gathers together all the settings you need to get your school going with online payments.

opp

There are also a couple new custom financial statement page layouts, which works just like our other custom layouts (transcript, award letter, etc.). There’s an overall statement that you can export from a student’s financial dashboard, and a term statement that’s available on the student’s financial term view. Contact Populi Support if you’d like to get going with either of the new layouts.

kustom

Populi supports net neutrality and so should you

Tuesday, May 6th, 2014

From Free Press’ Save The Internet site:

On Jan. 14, 2014, the U.S. Court of Appeals in Washington, D.C., struck down the Federal Communications Commission’s Open Internet Order.

And now, the FCC is proposing rules that would kill — rather than protect — Net Neutrality and allow rampant discrimination online.

What is net neutrality anyway? And why should you care? One of my favorite YouTubers, CGP Grey, does a great job explaining not just what net neutrality is, but why we must defend it.

So what difference can we make? The White House has already responded to this petition asking for a restoration of net neutrality, and while this is a good start it doesn’t actually get us any closer to the goal of preserving a free and open internet.

Save The Internet has a number of ideas about how we the people can keep the pressure on the FCC to do the right thing. On behalf of Populi, I encourage you to check out the list and take action to defend net neutrality.

Heartbleed

Tuesday, April 8th, 2014

On Monday, April 7, security researchers published information about a bug in the OpenSSL cryptographic software library. OpenSSL powers the encryption used to secure the internet—everything from websites to instant messaging to virtual private networks. The bug, called Heartbleed, could affect about 2/3 of encrypted internet traffic.

As of now, all Populi servers have been patched against this vulnerability, and we have no reason to believe that any of our clients’ data was compromised. Due to the critical nature of this issue, we performed the patching during business hours today—rather than after hours as we normally do—so our apologies to anyone who was affected! We’ll continue to monitor the situation and post further updates if necessary.

To the best of our knowledge, Populi has been locked-down against this bug and all data is secure.

Even more free file storage for everyone!

Monday, April 7th, 2014

Do you remember where you were on June 18th, 2013? The last time we went and upped everyone’s free file storage limit?  We remember where we were: that day, we were upping your free file storage limit. This is kind of like that, except we’re not even waiting for the summer to . . .

. . . give everyone even more free file storage.

Every plan has already received more for the same—which is for free. It happened and you didn’t even notice!

Are you on the so-called small plan? Where you used to get a measly 50 gigs of free storage? Now you get 100 gigs of free storage.

The medium plan? Been wishing you had more than 100 gigs of free file storage? You’ve been gazing wistfully at the large plan’s 200 gigs? Now it’s yours. 200 gigs of free storage.

The large plan. You had 200 gigs of free file storage. Pretty good. What would be great? 500 gigs would be great, right? And that’s what you get. 500 gigs of free storage.

Our Plan Pricing remains the same. So all those extra gigs-per-month really are free.

Enjoy it. Use it. You’ll have even more room to store and deliver your video and audio lectures and materials. Start uploading dumb stuff—like daily videos of your coffee cooling, accompanied by in-depth commentary—just because you can.

This applies to all of our current customers and anyone else who has yet to jump aboard with Populi. That extra file storage is yours to use right now!