Challenge yourself with these true/false questions. Click on your choice to see if you are correct.
Control procedures are needed to counteract threats to validity. (True/ False)
Every possible control procedure must be included in an experiment if it is to be a valid experiment. (True/ False)
Controls are most fully developed at the experimental level of research. (True/ False)
The type of validity concerned with the adequacy of conclusions about null hypotheses is called statistical validity. (True/ False)
External validity concerns the ability to generalize results from a study to a larger population. (True/ False)
In a threat to internal validity, it is the dependent variable that is confounded. (True/ False)
The threat to external validity is the same as the threat to construct validity. (True/ False)
Controls are necessary only at the experimental level of research. (True/ False)
Careful preparation of the setting is an example of control through experimental design. (True/ False)
When some uncontrolled factor offers an alternative explanation of the results, it is called confidence. (True/ False)
Response measurement and replication are examples of general control procedures. (True/ False)
Repeating an experiment as nearly as possible to the original is called exact replication. (True/ False)
Double-blind procedures will improve external validity. (True/ False)
Automation is another procedure for reducing experimenter-participant contact. (True/ False)
Using multiple observers is a way of improving construct validity in nearly all experimentation. (True/ False)
Deception in experimentation is unethical and should never be employed. (True/ False)
If deception is to be used in research, then the ethical safeguard is to include a debriefing session with the participant. (True/ False)
In psychology, as contrasted with chemistry, subjective measures are preferred in research. (True/ False)
Marlatt's balanced placebo design employs deception. (True/ False)
The larger group of all events or organisms in which we are interested is known as the ad hoc population. (True/ False)
The accessible population is the group to which we have access. (True/ False)
When the characteristics in the population are found in the sample in the same proportion as in the population, then we have a representative sample. (True/ False)
Random sampling can be done only by use of a table of random numbers. (True/ False)
Stratified random sampling involves drawing from subpopulations. (True/ False)
Unbiased participant assignment is critical at all levels of research. (True/ False)
Matching procedures are best used when we have a large number of participants. (True/ False)
In any experiment, the protection of internal validity is of major importance. (True/ False)
The single-group, pretest-posttest design is a true experiment. (True/ False)
Experiments must have at least two levels of the independent variable. (True/ False)
In experimentation, the task is to answer questions about causality. (True/ False)