ANOVA with missing case

#1
Hi All,

I was wondering if anyone could shed some light on a current situation I have encountered. I have a study set-up with 13 participants that I am examining over 5 time-points, hence, I intend to conduct a one-way ANOVA. However, on one of the time-points, a participant was unable to attend the situation so I now have a missing case but given there only being 13 participants I am reluctant to remove the participant from the data set. Could anyone please advise what to do in this situation? My data is laid out in wide-format e.g. every row is a participant and each measure has 5 columns such as strengthday1, strengthday2 etc.

Thank you in advance,

Brett
 
#2
probably one-way repeated measures anova since you are testing the effect of time within subject?

the missing observation is not a deal breaker. you would need to use mixed-model though. this is an option in most common software packages.
 
#3
probably one-way repeated measures anova since you are testing the effect of time within subject?

the missing observation is not a deal breaker. you would need to use mixed-model though. this is an option in most common software packages.
Thank you for your response. Would I be correct in thinking that this is a random effects model and the subject ID is entered as the random variable?