Bar Chart of Means Flashcards
What is an example of an experimental hypothesis related to comparing group means?
When there’s a conflict between ink colour & written word (incongruent; condition B), response time increases & more errors are made (compared to congruent; condition A).
Will the mean reaction time (& mean number of errors) of an experiment involving an incongruent condition B & a congruent condition A & name & colour matching, be similar or different if name-colour matching makes no difference to performance?
Similar
What is a more general way of expressing that the mean reaction time (& mean number of errors) of an experiment involving an incongruent condition B & a congruent condition A & name & colour matching will be similar if name-colour matching makes no difference to performance?
x̄1 - x̄2 = 0
When plotting group means, what indicates the mean (the average value for a variable)?
The height of a bar.
When plotting group means, what does a line (‘error bar’) represent?
The spread of scores as indexed by standard deviation.
When plotting group means simply using SPSS, how do you want your data to be displayed in the chart?
Summarised as separate variables.
When plotting group means simply using SPSS, what do you indicate are represented by the bars in the chart?
All of your mean values.
How is a box plot (or box and whisker plot) usually created?
Using software such as SPSS
What do box plots created by software such as SPSS display?
The median, first quartile, second quartile, third quartile, minimum value & maximum value.
What does a box plot look like?
It has the independent variable’s data (e.g., “Experiment No.” on the x-axis and the dependent variable’s data (e.g., “Speed of Light (km/s minus 299,000)) on the y-axis, with several boxes displayed in the centre, apart from each other.
