Psychology General
Studies
Sampling techniques and bias
Key Terms
General
100

Psychology is the (blank) study of human behavior and mental processes. (what word goes in the blank space?)

Psychology is the SCIENTIFIC study of human behavior and mental processes.

100

What is the name of the variable that is measured in a study?

The dependent variable.

100

What is the name of the sampling technique where participants volunteer?

Self-selected sample

100

What is the definition of "psychology?"

The scientific study of human behavior and mental processes.

100

The group in an experiment that receives a treatment that is expected to have an effect is called the ....(what)... group?

Treatment group

200

Psychology is the scientific study of behavior and ...?

mental process / cognitive processes / cognition / internal processes (any of these terms is fine).

200

What is the name of the variable that is manipulated by the researcher/s in a study?

Independent variable

200

What makes a sample biased?

If it is non-representational

200

When one variable increases, so does the other. What's this called?

A positive correlation.

200

What is it called when you give someone a treatment (e.g. pill or injection) that has no biological effects, but may have an effect if the person believes it will?

A placebo.

300

In psychology, is anecdotal or empirical evidence more valuable?

Empirical

300

What is the name given to a variable that might affect the dependent variable, but is not what the researchers are interested in studying?

Extraneous variable.

300

What is the difference between purposive and stratified sampling?

Stratified employs random sampling from each sub-group of the target population and is thus more representational and expensive to carry-out. Purposive sampling is cheaper and is easier when the target population is difficult.

300

When one variable increases, the other decreases. What is this called?

Negative correlation.

300

What is the name of our next unit?

How do we get influenced by others?

400

In the scientific approach to studying psychology, after we gather data and form a hypothesis, what's the next step?

Test the hypothesis.

400

Why are laboratory experiments used to investigate causational relationships?

Because extraneous variables can be controlled in a laboratory, so the IV can be isolated as the only variable influencing the DV.

400

How can psychologists minimize sampling biases?

Making sure the sample is representational of the target population by using different times, places, and even sampling techniques.

400

What are weaknesses of an independent samples design?

Participant variability, more participants are required

400

Name one way that we discussed in class that other people influence us.

Conformity, decision making, cognition, memory, etc

500

What is the difference between a mental process and a cognitive process?

There is none.

500

What are two reasons why we might not be able to conclude a causational relationship from a study?

1) There are too many extraneous or confounding variables. 2) We do not know the direction of the relationship in the study (i.e. which variable is affecting which).

500

What is the name of your Math teacher?

Ms Atlay

500

What is it called when we're not sure of the direction of influence in a relationship between two variables?

Bidirectional ambiguity

500

How many pets does Mr Wheeler have?

1

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