really this video is an excellent video. here one has all that is needed to understand the internal validity and all its threats. THANK YOU SO MUCH FOR POSTİNG THİS VİDEO.
+Maximilian Theobald -Hi Maximilian, thank you for your comment, your willingness to be helpful is appreciated. September 31st is actually correct, however, the date discussed indicates the date the measurement took place, as opposed to the day of the terrorist attacks. I hope this helps. Professor Hozack
I think Maximilian's point was that there is no such date as September 31st, as there are only 30 days in September - not that you had mistakenly said that the terrorist attack was on September 31st. Nevertheless, great video. Thanks!
Thank you so much for posting this video. Now I understand why internal validity is important to analyze the study result.
Professor Hozack, thank you for grouping these videos together. It was very helpful.
I had hard time understanding the regression threat until I watched this video. Very helpful thank you!
It is a great lecture. Thank you so much, Ms Hozack!
Great summary on this topic
really this video is an excellent video. here one has all that is needed to understand the internal validity and all its threats. THANK YOU SO MUCH FOR POSTİNG THİS VİDEO.
Very Useful for me even after 7 years after publishing
Discussing this today, this helped much 😀👍
Simple and clear explanation.
Is Mortality threat the same as Attrition threat?
Ty for taking the time Prof Hozack. However I think Mrs Travis gets around too much Confounding the research.
The knife is such a weird object to use for pointing with.
Great explanation! thx
This is so helpful
Thank you so much:)
wow... excellent!!!
great video :)
soooooo helpful.. thank u
thank so much for this
hello fellow psyc 1009 students
Caught 😂
bestttt
30 days in September
this video needs a TRIGGER WARNING LOL
Sep 31st is not correct :-)
+Maximilian Theobald -Hi Maximilian, thank you for your comment, your willingness to be helpful is appreciated. September 31st is actually correct, however, the date discussed indicates the date the measurement took place, as opposed to the day of the terrorist attacks. I hope this helps. Professor Hozack
+Nikki Hozack I see your point. It's just a little bit confusing like the 30th February would be too. But nevertheless a good video 👍
+Maximilian Theobald - Agreed Maximilian, and as such, I am glad you bought it up - now if anyone else has the same question, it has been answered!
I think Maximilian's point was that there is no such date as September 31st, as there are only 30 days in September - not that you had mistakenly said that the terrorist attack was on September 31st.
Nevertheless, great video. Thanks!