In order to do ethical research, researchers must obtain informed consent from research participants. Informed consent is sometimes obtained verbally rather than using a written form. Researchers usually need to have their way of obtaining informed consent approved by an institutional review board.

Laboratory observation allows the researcher to have more control over the experiment and to be able to utilize more precise equipment. In naturalistic observation the researcher is observing the organism in their natural environment which gives the researcher no control of the environment. In both case studies and surveys the participant is giving the information from their point of view which also does not allow the researcher control of the experiment.

Laboratory observation allows the researcher to have more control over the experiment and to be able to utilize more precise equipment. In naturalistic observation the researcher is observing the organism in their natural environment which gives the researcher no control of the environment. In both case studies and surveys the participant is giving the information from their point of view which also does not allow the researcher control of the experiment.

In order to do ethical research, researchers must obtain informed consent from research participants. Informed consent is sometimes obtained verbally rather than using a written form. Researchers usually need to have their way of obtaining informed consent approved by an institutional review board.

Participants in the line-judgment task were asked to identify which of three lines shown in a series of projected images was the longest while sitting in a room with a group of study confederates whom they believed were other participants in the study. The confederates would unanimously agree on the same incorrect line for a question, forcing the participant to choose between conforming to the majority opinion or trusting his/her own eyes and dissenting.

The principle of confidentiality requires all psychologists to take steps before, during, and after research to ensure that no individually identifiable information is accessible to non-researchers without the expressed consent of the participants. A case study can be defined as an intensive review of at least one person’s psychological profile. It is virtually impossible to remove all identifiable information from such a report. For this reason, confidentiality agreements are often lengthy in case studies, and the participant(s) must be kept aware of the risk that, in spite of a researcher's best efforts, their identity may become known.

Participants in the line-judgment task were asked to identify which of three lines shown in a series of projected images was the longest while sitting in a room with a group of study confederates whom they believed were other participants in the study. The confederates would unanimously agree on the same incorrect line for a question, forcing the participant to choose between conforming to the majority opinion or trusting his/her own eyes and dissenting.

The principle of confidentiality requires all psychologists to take steps before, during, and after research to ensure that no individually identifiable information is accessible to non-researchers without the expressed consent of the participants. A case study can be defined as an intensive review of at least one person’s psychological profile. It is virtually impossible to remove all identifiable information from such a report. For this reason, confidentiality agreements are often lengthy in case studies, and the participant(s) must be kept aware of the risk that, in spite of a researcher's best efforts, their identity may become known.

The mean is the average of a data set. On the other hand, the median is considered to be the 50th percentile—that is cutting the entire data set in half and representing the exact middle of the data set. The mean may be skewed depending on the data set. For instance, the median may be 50 but because of a few higher numbers, the mean could be 56. Using the mean as a measure of central tendency may cause the distribution to be a bit lopsided. Percent error is a statistical measure of the marginal error of actual results compared to expected results; therefore, percent error would not be the correct answer. Additionally, standard deviation is the measurement of the deviation from a group as a whole. This calculation is often conducted using averages (means); thus, the options standard deviation and standard deviation of the mode would also be incorrect.

The difference between laboratory experiments and field experiments is not the number of subjects, but the place where they are conducted-the lab or the outside world. Lab experiments are more easily controlled whereas field experiments are more realistic.