Flashcards in Chapter 1 Deck (44)
Provides info on how ppl behave but not why
type of bias in which differences between experimental and control group result from diffs in types of particpants not the IV
attention-placebo control group
participants are exposed to a believable or credible treatment that contains the nonspecific factors that all therapies share but not the specific one in the IV
when the observed changes in the DV are caused by the IV
the generalizability of results of an experimental study to other subjects.
higher level of validity. The degree to which treatment effects can be accounted for by the theoretical mechanisms or constructs represented in the IV. (must do what you said it was going to do). Can never be certain of this.
Attempt to disentangle the roles of heredity and environment.
Regulate the development of traits. Chromos house are genes. There are 20,000 to 25,000 genes in the human body.
Genotype vs. Phenotype
G is the set of traits specified by our genetic codeP is the expressed traits. It is the combo of genetics and eviro.
The case first diagnosed.
100% genetic overlap, identical twins. Zygote divides into two cells
50% overlap, fraternal twins, two Zygotes fertilized.
the percentage of cases in both twins with the same disorder (higher for MZ twins)