Chapter 1 Part 5

Front 1

Double-blind experiment

Back 1

An experimental design in which neither the experimenter nor the participants are aware of which participants are in the experimental group and which are in the control group until the results are calculated.

Front 2

Demand characteristics

Back 2

Any aspects of a study that communicate to the participants how the experimenter wants them to behave.

Front 3

Research participants bias

Back 3

In an experiment, the influence of participants' expectations, and of their thoughts about how they should behave, on their behavior.

Front 4

Placebo

Back 4

In a drug study, a harmless substance that has no physiological effect, given to participants in a control group so that they are treated identically to the experimental group except for the active agent.

Front 5

Experimental bias

Back 5

The influence of the experimenter's expectations on the outcome of research.

Front 6

Demand characteristics

Back 6

Any aspects of a study that communicate to the participants how the experimenter wants them to behave.

Front 7

Sample

Back 7

The subset of the population chosen by the investigator for study.

Front 8

Population

Back 8

The entire group about which the investigator wants to draw conclusions.

Front 9

Random sample

Back 9

A sample that gives every member of the population an equal chance of being selected.

Front 10

Naturalistic observation

Back 10

The observation of behavior in a real-world setting.