Lifespan Research: cross sectional & longitudinal

[@kaylamoore2389]

Thank you for this video..been searching all night for an understanding of the two and you were the only one to explain it this easy

[@rethacharicema]

Thankyou for this. This is understandable. I have a presentation tomorrow morning wish me luck k.

[@divxwiz]

Good explanation, helped clear up my confusion. Thanks for upload

[@XCantstaythesameX]

Thank you for this video. Really helped.

[@RidovhonaTsanwani]

This helped a lot.

[@womenrockdk1543]

Who Authorizes These Studies?

[@namco1123]

wonderful stuff

[@bluecupcakes98]

thank you !!!!!!!!!

[@headlessprofessor]

Then I would have to get some pointers.

[@maryadrianne4867]

unrelated but you sound like idubbbz

[@drewzifer]

Can't take my eyes off his creepy long finger nails. Dude, get some clippers.