Psychology Statistics knowledge check

For an experiment with an independent measures design that has collected ordinal level data, which statistical test would be used?

• Binomial Sign test

• Wilcoxon Signed ranks test

• Chi-square

• Mann-Whitney

‘Older people will spend significantly more time doing sporting activities in a week than younger people.’ What sort of hypothesis is this?

• One-tailed alternative

• Two-tailed alternative

• Opportunity hypothesis

• Null Hypothesis

‘There will be a significant negative relationship between the number of pets a person owns and the number of holidays they take in a year.’ What sort of hypothesis is this?

• One-tailed alternative hypothesis

• Two-tailed alternative hypothesis

• Opportunity hypothesis

• Null hypothesis

In a statement of significance, what does ‘p’ stand for?

• The probability of a statistically significant effect

• The probability of results being due to the independent variable

• The probability of results being due to chance factors

• The probability of two co-variables being related

What is the standard level of significance in Psychology?

• P≤0.05

• P≤0.01

• P>0.05

• P>0.01

For an experiment with a matched participants design that has collected ordinal level data, which statistical test would be used?

• Binomial Sign Test

• Wilcoxon Signed Ranks

• Chi-square

• Mann-Whitney U test

Which of the following is NOT one of the criteria for using a parametric test?

• Samples are drawn from a normally distributed population

• Variances are not significantly different

• The research method is an experiment

• The data is interval or ratio level

Which of the following is an example of a parametric test?

• Spearman's Rho

• Chi-square

• Unrelated t-test

• Binomial sign test

What does it mean to say that a type 1 error has been made?

• The null hypothesis has been wrongly rejected

• The researcher says their data is ordinal level when actually it is nominal level

• The alternative hypothesis has been wrongly rejected

• The researcher says their data is nominal level when actually it is ordinal level

When would a histogram be used to display data?

• For continuous data

• For a correlation study

• For an observation study

• For discrete data (in categories)