An Experiment Was Done to Look at Whether There Is

question 2

Multiple Choice

An experiment was done to look at whether there is an effect of the number of hours spent practising a musical instrument and gender on the level of musical ability. A sample of 30 (15 men and 15 women) participants who had never learnt to play a musical instrument before were recruited. Participants were randomly allocated to one of three groups that varied in the number of hours they would spend practising every day for 1 year (0 hours, 1 hours, 2 hours) . Men and women were divided equally across groups. All participants had a one-hour lesson each week over the course of the year, after which their level of musical skill was measured on a 10-point scale ranging from 0 (you can't play for toffee) to 10 ('Are you Mozart reincarnated?') .
- An ANOVA was conducted on the data from the experiment. What can we say about the effect of practice on musical skill?

• A)There was a significant effect of practice on skill level, which is likely to reflect the increase in musical skill when some weekly practice is engaged in compared to no hours practice.
• B)There was a non-significant effect of practice on skill level, which implies that skill levels were similar regardless of how much practice per week was engaged in.
• C)There was a significant effect of practice on skill level, which is likely to reflect a significant improvement when engaging in 1 hour per week practice compared to none, and when practising for 2 hours per week compared to 1.
• D)There was a significant effect of practice on skill level, but this effect is superseded by the interaction between practice and gender.

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