CRIM 220 Lecture Notes - Lecture 6: Internal Validity, Time Series, Longitudinal Study
8 Aug 2015
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Sunday mar 8 11:59pm: headings and point form for research designs, e. g. Iv = gender (male/female) dv = recidivism (new arrest within one year after program completion) Iv not manipulated and/or subjects not randomly assigned: more internal validity concerns, requirements for a qe design, comparison group and/or multiple measures. Are abuse children more likely to be charged with adult offences: findings = yea. O = number of juvenile or adult arrests. Use of non-equivalent control groups (no random assignment, and not completely equivlanent but equivalent in way that the study is concerned with) No comparison group (e. g. cant tell if ppl don"t come to class to study etc) Essentially like a class where you learn smth and take a test and see the result to see what they know. Cohort group of subjects who enter or leave an institution at the same time: e. g a class of police officers who grad form a training academy at the same time.
