Research Methods

Question 0

What are repeated measures?

Answer 0

There is only one group of participants. All the participants take part in both conditions of the experiment.

Question 1

What are independent groups?

Answer 1

Participants in the experiment are divided into two groups. One group take part in one condition and the second group takes part in another condition!

Question 2

What is Matched Pairs?

Answer 2

The participants are tested and matched for qualities into paris and one member takes part in one condition and the another takes part in another condition.

Question 3

What are the advantages of independent groups?

Answer 3

• There are no order of effects because the participants take part in one condition
• Participants cannot work out the aim of the study because they only take part in one condition

Question 5

What are the disadvantages of independent groups?

Answer 5

• There is different participant variables in two conditions.
• You need more people for the study because there is to groups.

Question 5

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Answer 5

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Question 7

What are the disadvantages of repeated measures?

Answer 7

• There are no order of effects as people have to do two tasks.
• You may need two tasks.
• Participants may work out the aim of the study.

Question 8

What are the advantages of matched pairs?

Answer 8

• Participant variables are reduced.
• There are no order of effects.
• Often the same material can be used for the task in both conditions.

Question 9

What are the disadvantages of matched pairs?

Answer 9

• Matching is difficult, time consuming and not always successful.
• Some participant variables are still present.

Question 10

What is standardised procedures?

Answer 10

A set order carrying out a study that is applied to all participants when necessary.

Question 11

What is random allocation?

Answer 11

A procedure for putting participants into conditions by chance.

Question 12

What is counterbalancing?

Answer 12

A procedure for evening out the order in which participants complete both conditions of an experiment.

Question 13

What is random sampling?

Answer 13

every member of the target population has an equal chance of being chose for the experiment.

Question 14

what is opportunity sampling?

Answer 14

people who are members of the target population and are available for the experiment.

Question 15

what is systematic sampling?

Answer 15

every ‘nth’ member of the target population is selected for the experiment.

Question 16

what is stratified sampling?

Answer 16

to obtain this type of sample, the different subgroups, in the target population are identified; then people are selected from these subgroups in proportion to their numbers in the target population.

Question 17

what are the advantages and disadvantages of random sampling?

Answer 17

Advantages - No researcher bias.

Disadvantages - Time-consuming.

Question 18

what are the advantages and disadvantages of opportunity sampling?

Answer 18

Advantages - Quick and easy.

Disadvantages - Not likely to be representative and may have researcher bias.

Question 19

what are the advantages and disadvantages of systematic sampling?

Answer 19

Advantages - Simple procedure with no researcher bias.

Disadvantages - Sample may not be representative.

Question 20

what are the advantages and disadvantages of stratifeid sampling?

Answer 20

Advantages - Very representative.

Disadvantages - Very time-consuming.

Question 21

what is ecological validity?

Answer 21

The results of the investigation can be said to apply to real life.