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| A strong correlation is ____ |
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| A weak correlation is ____ |
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| A perfect negative correlation is what number? |
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| A perfect positive correlation is what number? |
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| What number is for no relationship? |
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| What is a regression line? |
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| Summary of points of a scatterplot and provides the means for making predictions |
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| How does restricting the range affect correlation? |
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| It lowers the correlation |
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| How do you calculate the coefficient? |
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| What is the third variable problem? |
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| causal conclusions from correlational data |
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| Applied research does what two things? |
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| aims to solve specific real world problems and furthers our knowledge of basic psychological phenomena |
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| In a study comparing two nonequivalent groups , a selection by history confound occurs when |
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| some event intervenes between pretest and posttest and affects just one of the groups |
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Using the system developed by Campbell and Stanley, which design is this?
O1 T O2
O1 O2 |
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| nonequivalent control group design |
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| According to Campbell, why is regression to the mean such a likely explanation when evaluating the effects of social programs (eg speeding crackdowns) |
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| programs to fix some problem are usually begun after an especially bad year |
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| Know the difference between formative and summative |
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| Know the difference between naturalistic and participant observation |
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| Interobserver reliability is calculated for the purpose of |
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| dealing with observer bias |
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| Most research in psychology uses ___ sampling |
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| On surveys subjects can try to present a positive image of themselves, a problem referred to as |
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| All of the following have been used as arguments for the use of small N except |
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| it is impossible to avoid confounding with large N studies |
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| What does it mean to say that a study fails the individual subject validity test |
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| it means that the overall conclusion is not reflected in the behavior of individual participants |
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| Trying to change a behavior in more than one environment in the same study is the goal os a ___ design |
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| Single subject designs have been critisized for all of the following reasons except |
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| replication does not seem to be important to small N advocates |
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