Research design

The three types of experimental research designs used in Psychology are:

• subjective quantitative, objective quantitative, qualitative

• independent measures, repeated measures, matched-pairs design

• experiment, quantitative observational,qualitative

• experiment, objective quantitative, qualitative

Important features of an experiment are:

• random assignment to treatment or control group

• difference between independent variable is pre-existing

• experimenter manipulates the independent variable

Experiments allow a causal relationship to be established between IV and DV

• true

• false

what is meant by an 'experimental design'.

• how psychologists design their research schedule

• how psychologists gather their sample

• how psychologists use participants in their experiments

• the type of experiment is used by psychologists

what is a repeated measures design.

• where participants take part in both or all conditions of an experiment

• where participants repeat trials within one condition

• where participants only take part in one condition

• where participants repeat what they have said

what are the two types of order effects which could occur in repeated measures design.

• fatigue and performance

• fatigue and forget

• practice and performance

• fatigue and practice

what is the aim of counterbalancing.

• to get an even number of participants in each condition

• to reduce demand characteristics

• to reduce the likelihood of order effects

• to make the results of the study more reliable

what is independent measures design.

• where participants only take part in one condition

• where participants are matched on particular characteristics

• where participants take part in all condition

• where participants do all conditions and repeat after a week

what two points are weaknesses of independent measures design.

• they require more participants so are time consuming

• they are likely to result in order effects

• they take careful consideration when matching participants

• there may be participant variables affecting the results