00:01
All right, so we are looking at threats of internal validity.
00:06
So you and another researcher want to compare the attitudes of men and women toward premarital sex.
00:12
And your colleague teaches at a predominantly female university in ireland, and you teach at penn state.
00:17
In order to share the work, you agree that your colleague will collect data from women, and you will collect data from men.
00:27
Well, so it's based on what i'm reading here, it's assuming that you know, you know, you will be collecting data from men from penn state and your colleague will be collecting data from females at a predominantly female university area.
00:45
So this threat of internality is selection bias because the groups are not comparable to the beginning of the study because when college students, i mean college students are probably some of the most research groups out there because very often the research subjects in a lot of psych programs.
01:08
So what is that? so you've got college.
01:14
That's something else.
01:17
That's something else, the fact that there's just college kids...