PSY310H5 Lecture Notes - Lecture 1: Longitudinal Study, Internal Validity
Slide 36
• Based on what the Adolescence tells me, I can then ask other questions depending on what the
individual says
• The order and types of questions differ
Slide 37
• In clinical method you can go more in depth
• If its i the sae order, ou do’t hae the sae fleiilit
• There is little consistency
Slide 38
• Naturalistic
o Good external validity, but internal validity can vary
o People can change their behaviour
o Undesirable behaviour may take place at times when you aren't there to measure it
o If I have multiple observers, I need to be consistent with the observations that we are
making
• Structured
o You now have control
Slide 40
• When you live in the society or group
• You can lack internal validity because observers can be bias too
• There was a lack of internal validity in terms of Mead's work
• You can’t generalize that information in other cultures
Slide 42
• You are keeping everything but IV constant
• Want to show that changing IV causes changes in DV
• Psychological realism
o Have I created the things that occur in real life?
o Is that the same kind of fear in real life?
• There are limits to what we can study
Slide 43
• This is when you use natural people
• I am not manipulating onset of puberty
• I can look at these differences without looking at ethical and legal issues
Slide 44
• You can predict about 50%, there is no causation
• Simple correlations alone cant tell you the causation between the 2
Slide 45
• Retrospective
o Ask participants to remember their past
o Easy to conduct
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Document Summary
Slide 36: based on what the adolescence tells me, i can then ask other questions depending on what the individual says, the order and types of questions differ. In clinical method you can go more in depth. If its i(cid:374) the sa(cid:373)e order, (cid:455)ou do(cid:374)"t ha(cid:448)e the sa(cid:373)e fle(cid:454)i(cid:271)ilit(cid:455: there is little consistency. Slide 38: naturalistic, good external validity, but internal validity can vary, people can change their behaviour, undesirable behaviour may take place at times when you aren"t there to measure it. If i have multiple observers, i need to be consistent with the observations that we are making. Is that the same kind of fear in real life: there are limits to what we can study. Slide 43: this is when you use natural people. I can look at these differences without looking at ethical and legal issues. Slide 44: you can predict about 50%, there is no causation.
