Psychology Research Methods_Year 9

In a study, injections of saline solution (which contains no chemicals) were shown to be quite effective for relieving pain. this is an example of:

• the experimenter effect

• a placebo effect

• the experimental effect

• an order effect

The experimental group is:

• Study in which neither the experimenter nor the subjects know if the subjects are in the experimental or control group

• study in which the subject do not know if they are in the experimental group or control group

• subjects in an experiment who are not subjected to the independent variable and may receive a placebo treatment

• the group to which the researchers manipulate the independent variable

The main purpose of ethical guidelines for research in Psychology is to:

• minimise the problems that participants cause for researchers

• guarantee that the experimentation runs without problems

• protect the welfare and rights of the participants

• ensure that any results published will not be challenged

Psychology researchers attempt to minimise or eliminate the impact of uncontrolled variables in experiments because the presence of these variables:

• do not enable the researcher to control the dependent variable

• means that only the uncontrolled variables are measured

• make it difficult to isolate and evaluate the impact of the independent variable

• can affect the measurement of the independent variable

A double-blind study is:

• a study in which the subjects does not know if they are in the experimental or control group

• a study in which neither the experimenter nor the subjects know if the subjects are in the experimental or control group

• a measure of the relationship between two variables

• the observation of human or animal behaviour in its natural setting

in an experiment, DEBRIEFING of participants most likely includes information such as:

• each participant's own results in the study

• the number of hours participants will be expected to participate

• the procedures that will be required fo participants during the experiment

• the individual results of the other participants in the study

the experimenter effect might occur when participants in an experiment:

• consciously or unconsciously affect the behaviour of the experiments in the experiment

• are all tired from participating from experiments throughout the day

• alter their behaviour because of conscious or unconscious cues given to them by the researcher

• undergo the sam procedures as an experimental group, but do not experience effects of the independent variable.

What is a population?

• a sample that has characteristics that are similar to those in the population

• subjects in an experiment who are not subjected to the independent variable and may receive a placebo treatment

• study in which the subject do not know if they are in the experimental or control group

• the entire group if people or animals in which the researcher is interested.

What is a representative sample?

• subjects in an experiment who are not subjected to the IV and may receive a placebo treatment

• a sample that has characteristics that are similar to those in the population

• the entire group of people or animals in which the researcher is interested.

• study in which the subject do not know if they are in the experimental or control group

what is the scientific method?

• a process of systematic observation, measurement and experiment to formulate and test hypotheses

• clear and detailed statement about how you will measure the data collected about the variables

• a sample that has characteristics that are similar to those in the population

• the group to which the researchers manipulate the IV