Compare and contrast the one-group before-after design and the two-group ex post facto design.
What will be an ideal response?
? The one-group before–after design, or one-group pretest–posttest design, is an example of a longitudinal design. A group, which is not necessarily chosen on the basis of representativeness, is observed, exposed to treatment, and again observed. The primary advantage of this design over the one-group ex post facto design is the presence of a premeasure. This adds, however, the problem of testing effects and has the same problem as the one-group ex post facto design in that one’s findings cannot be compared with those for a similar control group not exposed to treatment.
? The two-group ex post facto design eliminates possible pretest reactivity by studying both an experimental and a control group after the experimental group has been exposed to some treatment. The primary problem with this design is that there is no way of being sure that the two groups were initially equivalent.
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SIGINT involves all of the following except?
code-breaking
cryptanalysis
satellite imagery analysis
foreign language analysis
Answer the following statement(s) true (T) or false (F)
1. Saliva is a form of biological evidence. 2. Identical twins have the same DNA. 3. DNA can be found in blood, semen, saliva, and hair. 4. PRAXIS is an electronic database operated by the FBI that allows federal, state, and local crime laboratories to share DNA profiles electronically. 5. DNA evidence may be used as exculpatory evidence.
Intake is the process in which a probation officer settles cases at the initial appearance before the onset of formal criminal proceedings
Indicate whether the statement is true or false
A federal truth-in-sentencing law, passed in 1987 and adopted in most states, requires offenders to serve at least _____ percent of their court-imposed sentence
a. 65 b. 70 c. 85 d. 90