Project #90083 - 9 Questions Research methods in Psychology

1. Two common confounding variables that must be controlled in a nonequivalent control-group design are:


A. selection and regression to the mean.


B. selection and maturation.


C. maturation and regression to the mean.


D. sequence effects and maturation.



2. Hu and colleagues (2001) studied how organizational citizens affect customer service. The conclusions they drew were limited because tellers were not randomly assigned to treatment conditions. How did they address such concerns?


A. Participants were randomly assigned to branches.


B. The branches selected were matched based on performance.


C. They controlled for important confounds using an ANCOVA.


D. They trained participants to have equal levels of citizenship behavior.



3. Born and Taris (2010) studied how advertisements appeal to different genders. Based on what you have learned about main effects and interactions, the more important finding of the study is that:


A. men considered the job positions more attractive than women did.


B. participants rated jobs with feminine profiles higher.


C. women were more impacted by masculine profiles than men were by feminine profiles.


D. whether women were affected by masculine profiles depended on how it was worded, either in terms of behaviors or traits.



4. Even though there are many different F-ratios, each F-ratio represents a comparison of:


A. overall variance to within-groups variance.


B. between-groups variance to within-groups variance.


C. overall variance to between-groups variance.


D. main effects to interactions.



5. In the type of mixed design in which both manipulated and nonmanipulated factors are included, the critical issue is:


A. a statistical one.


B. to use care in interpretation of results.


C. to interpret main effects before interactions.


D. to make sure the same number of participants is used in each group.



6. Which of the following is an accurate statement about high-constraint, laboratory research?


A. It has high internal validity but may have low external validity.


B. It is necessarily high in both external and internal validity.


C. It is so constrained that it has no external validity.


D. It must include at least four groups for proper controls.



7. Which of the following does NOT apply to conducting experimental research in natural settings?


A. We often cannot obtain enough participants for the creation of experimental and control groups.


B. We cannot test the external validity of causal conclusions arrived at in the laboratory.


C. Random assignment is often impossible.


D. Manipulation of independent variables is usually difficult, if not impossible.



8. Quasi-experimental designs are different from low-constraint methods in that:


A. quasi-experimental methods attempt to answer questions of causality.


B. low-constraint methods attempt to answer questions of causality.


C. unlike low-constraint methods, quasi-experiments always directly manipulate the independent variable.


D. unlike low-constraint methods, quasi-experiments usually assign participants randomly to groups.



9. he analysis of covariance (ANCOVA) is generally useful for:


A. the removal of interaction effects.


B. the statistical removal of variability caused by extraneous variables.


C. analyzing more than one independent variable.


D. All of the above.


Subject General
Due By (Pacific Time) 10/30/2015 12:00 am
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