Statistics

Auto correlation is the correlation of one signal with itself.

Cross correlation is the correlation of one signal with a different signal.

not all the time, depends on how long been married and how he and wife get along and how often they have sex

A person's genres or upbringing are more important. :)

how can people change their thinking and behavior

A treatment is imposed,

ex.)

making the participants take a certain medicine instead of just allowing them to do what they please and see how they heal.

behavior and mental processes.

experiment.

the treatment that the researcher controls directly.

the rain trickles slowly down the windows like a child's tears

Correlation ~

Students learn more from video games than from classroom activities

The source of math instruction

The amount of math learned

the hawthorne effect

Name of the school

categorial data.

Bald people who wear diapers tend to cry more often than other people

people who subscribed to one particular mobile phone service.

Correlation alone cannot be able to complicate causation.

A person believes cell phones cause cancer despite scientific studies finding no correlation between them.

A. We should all eat less of the cereal

B. Eating the cereal lowers your cancer rate

C. We should all eat more of the cereal

D. The cereal might ( or might not) be the cause of a lower cancer rate

Variable