Description
Statistical Analysis Portfolio Coursework
A research
study has been conducted to investigate the effect of a mental imagery
intervention (in comparison with a control group) to improve scoring success
and self-confidence in basketball players. The researchers also measured the
players’ levels of performance anxiety, the number of years experience of
playing basketball, and their desire for perfection. All of these assessments
(including scoring success and self-confidence resulted in scores measured on
at least the interval scale).
In addition,
the players were tested on their ability to perform 4 separate basketball skills
(again measured on an interval scale).
Use the
dataset "Sports med.sav". For the following, carry out the appropriate
statistical analysis. Write a short section on the results, mention the analysis
chosen, include the relevant exact statistics and give a summarising interpretation.
- Explore
the shape (using appropriate figure(s) and statistics) of the measures of
scoring success and self-confidence at both time points (i.e. 4 variables
in total). Calculate the most appropriate measure of central tendency and
variability for each of these variables.
- Describe
the relationship between self-confidence (at each point in time) with the players’
levels of performance anxiety, the number of years experience of playing
basketball, and their desire for perfection.
- Is there any difference between
the control and intervention groups in terms of previous mental health
issues?
- Is
there any difference between the control and intervention groups in terms
of the score for each of the 4 skills assessed?
- Is
there any difference between the control and intervention group in terms
of the change in self-confidence scores over time? (For the purposes of
this exercise, provide and interpret an interaction plot, if one is
appropriate, whether the interaction is statistically significant or not).
- Are
the scores on the scoring success scale at post-test dependent on the interaction
between previous mental health issues and group?
- To
what extent is performance anxiety explained by previous mental health
issues, years experience playing basketball and desire for perfection?