Psychology variables and methods

Question 1

what is an IV, DV and EV

Answer 1

IV - What you manipulate

DV- What you measure

EV- Something that could effect your results that you didn’t think about

Question 2

What is Random Sampling

Answer 2

When people are chosen at random for an experiment.

Question 3

What is Stratified Sampling

Answer 3

dividing a population into smaller groups

Question 4

What is Convenience Sampling

Answer 4

Using a group convenient to the experiment.

Question 5

What is an Independent Group and what are the limitations and advantages

Answer 5

Each participant is randomly allocated to one of two entirely separate conditions

Drop outs unlikely

Large number of P’s needed

Question 6

What is a Repeated measures

Answer 6

The same participants are in both the experimental and control groups

Fewer Participants

Drop outs likely

Question 7

What is Matched Participants

Answer 7

Each participant in one condition ‘matches’ a participant in the other condition(s) on one or more participant variables of relevance

The variable that the P’s are matched on will not influence results

Time consuming and Expensive.