YR 2 Week 6_TEST 2 Choosing a Stats test

What assumptions about the data need to be met to use a parametric test?

• Homogeneity of means
• Homogeneity of variance & normally distributed data

• Homogeneity of distributions

• Nominal scale measurement

When would a non-parametric test be used?

• When the data is normally distributed.
• When the sample size is large enough for parametric tests.
• When the data does not meet parametric test assumptions.
• When the data is nominal or ordinal

The psychologist found the results were significant at p 0.05 - is the null hypothesis rejected or accepted?

• Not enough data
• Inconclusive
• Accepted
• Rejected

When choosing a stats test, it depends on what design is used. What is a research design?

• Whether the hypothesis is 1.tailed or 2.tailed.

• A research design is a summary of previous studies.
• A research design is whether the study is an experiment or a correlation

• A research design is whether the study used related data or unrelated data

Why is an independent measures design referred to as ‘unrelated’ data?

• The data from each group is dependent on the other group.
• Different participants are used in each group, making the data from each group independent of one another.

• An independent measures design uses the same participants in each group.
• Independent measures designs are only used in qualitative research.

Which Level of data would be used when investigating how long people take to get to college in minutes?

• Interval data
• Nominal data
• Ordinal data
• Categorical data

Which level of data would be used for testing how attractive Harry is on a scale of 1-10?

• Interval data
• Ordinal data
• Nominal data
• Ratio data

Which level of data would be used when investigating which mode of transport people use to get to college?

• Interval data (intervals are known)

• Nominal ( data in intervals )

• Nominal (categorical data)

• Ordinal data (intervals are unknown)

When choosing a stats test, it depends on the nature of the study. Which methodology looks to see if the IV effects the DV?

• Experiments

• Correlation study
• Qualitative analysis
• Descriptive statistics

When choosing a stats test, it depends on the nature of the study. Which methodology takes two data points from each participant?

• Experiments: Looking at a difference

• Independent sample design
• Correlation: Looking at the relationship between two variables

• Cross-sectional design