Psychology Experimentation Quiz

An experiment must include ________.

• a positive or negative skew

• statistical significance

• confounding variables

• Two groups that are randomly assigned

Why do you randomly assign in an experiment? To control for....

• confounding variables

• reliability

• statistical signivicants

• sample size

How do you control for confounding variables?

• Use informed consent

• Use random assignment

• Use random sample

• Use correlation coefficients

Which group receives the independent variable?

• experimental group

• confounding group

• reliable group

• control group

Why do we need operational definitions?

• to test validity

• to test for confounding variables

• to replicate the study

• to sample a specific population

What word do you need to use when talking about a correlation?

• relationship
• statistical significance

• correlation coefficient

• p-value

What words are best to use when talking about an experiment?

• statistical significance, mead, median, and mode

• correlation, relationship

• cause and effect, causal, causation

• x and y axis, mean

Operational definitions should always include a way to measure like.

• a number

• a score

• an amount

• all of the above

What does it mean if data is statistically significant?

• The findings are NOT due to chance

• The findings ARE due to chance

• The mean justifies the end

• There are no skews in the data

What is the number value for statistical significance? P-Value is less than .05 (p<.05)

• True

• False