المحاضره 8
comparison (experimental) / control groups
المقارنة (التجريبية) / مجموعات المراقبة
Treatment = الطريقه او الوسيله اللي تستخدمها في دراستك او بحثك
- Experimental group : you gave them new treatment .
- Control group : this group has no treatment .
** Usually in experimental design you have 2 groups :
التصميم التجريبي بالعاده يحتوي على مجموعتين وهم:
Between Groups Designs & Within Group Designs
Compare one group to another group , we called it - Between Groups Designs - and all the groups need to be similar
Compare one group to itself over time ,we called it - Within Group Designs - and the treatment will be repeated to the this one group .
يوجد نوع من انواع البحث الدراسه فيه لا تحتاج الى مجموعات مقارنه
The type of Research the studies do not use comparison groups # qualitative/descriptive
** they just describe…really well
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One time vs. over time research
1.Cross-sectional method :
Same group of people are observed at one point in time
2.Longitudinal method:
Same group of people are observed at different points in time as they grow older