I had never seen that video before and I have no desire to see it again.
Another vote for skort; but not the type in the Wikipedia description. Here’s one which matches my recollection, which I thought was from the 60’s, but may be from the 50’s: shorts, but with the legs flared and shaped so as to look as much like a skirt as possible.
I only had to see about 1 second of the video. Those are absolutely culottes.
The girls in my high school once talked the nuns into allowing culottes at a school dance, without specifying how long the legs had to be. The nuns were thinking of the full stylelike our cheerleaders wore. The nuns were. . . surprised.
In my experience, surprised nuns are… not a good thing.
Yeah, definitely culottes or a skort. If you have to google these terms, you don’t know. I wore skorts and super short culottes like this. And, yes, we called them culottes. Longer culottes were what we called palazzo pants. 
Culottes, pedal pushers, clam diggers, and capris are simply different words for the same thing – pants where the hem hits mid-calf.
I don’t know why the fashion world decided it was necessary to have four different words for the same thing, but I suppose it’s in their interest to confuse people.
They’re not the same. You might not care about the differences, but they exist.
I don’t know. Unfortunately I only got a brief glance and then they started “dancing,” compelling me to pluck out my eyes so that I would suffer it no more.
Thanks for the replies, I thought Maureen had a pretty good voice. Too bad we can’t ask her personally 
I wasn’t staring at her crotch, just her legs. Looks like skort to me, what little attention I paid to the outfit.
Yeah, they’re absolutely different. Small differences, but anyone who knows what any of those terms mean would know what you were talking about.
A skort had a sort of a wraparound panel in front that made it look more like a skirt, while a culotte had a plain front that looked more like shorts.
It absolutely is a faux skort.
I had many skorts in my day. A skort looks like a very “short” skirt from the front, and shorts from the back. They are short.
Culottes are wide leg pants that range from above the knee to above the ankle, much longer, and they become palazzo pants.
Capris and pedal pushers are the same. Fitted pants that fall from below the knee to above the ankle.
Clam diggers are short pants, that are usually slouchy, not fitted, and maybe have a gathered, or drawstring waist.
Marsha is wearing flared leg, pleated shorts.
Marcia, Marcia, Marcia!
From the title, I thought this was going to be a “which do you prefer?” thread.
(For the record: Skirt.)
I hate to disillusion you, but all the Brady kids’ voices were covered by professional singers.
Susan Day and Danny Bonaduce didn’t play their own instruments on the Partridge Family, either.
I think we called the mid calf length ones gaucho pants. I haven’t heard that term in years, no idea if it’s used anymore (gaucho pants, I mean).
Why not? She’s still alive.