Research Methods Quiz - up to Quantitative Data

Marathon runners as assessed on how much sleep they have the night before and after the race. The operationalised DV is...

• The amount of hours slept

• The number of hours slept

• The type of sleep they got

• When they slept (before or after the race)

Participants are asked to give ratings for an attractive and unattractive photo. What experimental design is used?

• Independent groups

• Repeated measures

• Matched pairs

Answer explanation

Repeated because they saw the attractive and then the unattractive photo

In an independent groups design there can be participant variables which affect the results, to overcome this you should...

• Use counter-balancing

• Randomly allocate people

• Restrict the types of people that can take part

• Use random sampling

Participants were made to list to good or bad news, then rate the degree of liking for the stranger. What level of measurement is this?

• Interval

• Ordinal

• Nominal

• Ratio

Answer explanation

Rating suggests a scale, additionally liking is subjective.

Participants were made to list to good or bad news, then rate the degree of liking for the stranger. What experimental design is this study?

• Independent groups

• Repeated measures

• Matched pairs

Answer explanation

Rating suggests a scale, additionally liking is subjective.

Participants were made to list to good or bad news, then rate the degree of liking for the stranger. What type of experiment is this?

• Lab

• Field

• Natural

• Quasi

Answer explanation

Rating suggests a scale, additionally liking is subjective.

Participants were made to list to good or bad news, then rate the degree of liking for the stranger. What measure of central tendency should be used?

• Mean

• Median

• Range

• Standard deviation

Answer explanation

Rating suggests a scale, additionally liking is subjective.

Participants were made to list to good or bad news, then rate the degree of liking for the stranger. In this study, the experimenter smiled as they spoke to the participants in the good condition, this is an example of?

• Investigator effects

• Demand characteristics

• Counter-balancing

• Experimental realism

Answer explanation

Rating suggests a scale, additionally liking is subjective.

To avoid investigator bias we could...

• Use a single blind study

• Use a double blind study

• Ensure experimental realism

• Show demand characteristics

Which one of these is a problem with using a stratified sample?

• It is biased as its drawn from a small part of the population

• It is time consuming to identify all the sub-groups

• It is not truly unbiased as you select a number using a random method

• It is biased as the participants are more likely to be highly motivated