1: OCR Psychology Research Methods: hypotheses & variables

A hypothesis is...

• what the researcher measures

• something unwanted that can affect results

• a testable prediction

• what the researcher changes or compares

The dependent variable is...

• what the researcher measures

• something unwanted that can affect results

• a testable prediction

• what the researcher changes or compares

The independent variable is...

• what the researcher measures

• something unwanted that can affect results

• a testable prediction

• what the researcher changes or compares

An extraneous variable is...

• what the researcher measures

• something unwanted that can affect results

• a testable prediction

• what the researcher changes or compares

The mnemonic 'Push Dad 2 India' helps you to remember what a hypothesis should contain. What does it stand for?

• Prayers, development, two invitations

• Please, downsides, two intuitions

• Prediction, dependent variable, two conditions of the independent variable

• Pull, domain, two containers for ice-cream

Two variables that change with each other - as one changes, so does the other - are called...

• Co-variables

• Linked variables

• Joined variables

• Twin variables

A correlation shows what?

• Cause and effect

• The difference between variables

• The effect of confounding variables

• The relationship between variables

When both co-variables move in the same direction, it's what kind of correlation?

• positive

• negative

• zero

What kind of graph is used to show correlations?

• bar chart

• histogram

• pie chart

• scattergraph

If the crosses on a scattergraph go down from left to right, it shows that...

• there is no relationship between variables

• confounding variables have affected the results

• the variables change in opposite directions - as one goes up, the other goes down

• there is no pattern or relationship between variables