What is an extraneous variable

Reference no: EM133303471

Assignment:

What is an extraneous variable?

Identify the extraneous variable in each of the examples below:

1. The researchers were interested in the effects of time of day on memory recall. They put all the young people in the morning condition and all the older people in the evening condition.

2. The researchers were interested in the effects of age on memory recall. They tested all the young people in the morning and all the old people in the evening.

3. Researchers were looking at the effects of noise on concentration. There were two conditions and participants were either in the noisy or quiet condition. When the researchers were conducting the quiet condition the thermostat broke on the radiator and the room was very stuffy and airless.

4. Researchers carried out a natural experiment on children in institutions. They looked at those that had been adopted by the age of three and those that had remained in the institution. They were interested in looking at the difference in social skills between the two groups.

Reference no: EM133303471

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