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Statistics help - very desperate! :'-( please help me!!
C

"Hi Catalinbond, thanks for the advice, that is very helpful. In what ways do mean this statistic is less meaningful because the numbers in each group are different?"

What I mean is that groups with less people will always contribute a smaller percentage within the column.

To give an example, in group 2 173/177 (97.7%) said yes and they contribute 39.8% within the group of people who said yes. Now if in a smaller group had the same percentage within in the group saying yes (e.g. 43/44, 97.7%) they would only ever contribute a quarter as much to the column (or group of people who said yes overall) as there were fewer in that group in the first place.

Hopefully that is clear.

Statistics help - very desperate! :'-( please help me!!
C

Hi Smiler,

I think you are right to look at the % in row rather than % in column.
The Percent in row means (for example) in group 1, 98.8% responded yes and 1.2% no. Whereas in group 3, only 53.9% responded yes and 40.7% responded no.
The percent in column means that of the people who responded no, 1.2 % were in group 1, 2.3% were in group 2 ..... 25.5% were in group 6. This statistic is less meaningful because because the numbers in each group are different.

Hope this makes sense.

CB

One final point, are the numbers/ percentages for group 1 correct? as they don't add up, 1/168*100 = 0.6% rather than 1.2. Should the count saying no be 2? this may be a typo in putting the data here.

where to live?
C

Whenever I make a decision I immediately start thinking, "what have I done....?" and doubting myself.

Hopefully the move will work out. I think it sounds like a good decision, people often talk about the loneliness of doing a PhD and at least with housemates there will be other people around that you can chat to in the evening. A half hour commute isn't really that long, you could use the time for reading or just thinking about your topic. I really valued my time mulling things over during my PhD (though I generally found the best place for thiking was lying in bed!)

how to use cluster analysis?
C

links didn't post well,but if you cut and paste they should hopefully work

how to use cluster analysis?
C

Cluster analysis determines how many ‘natural’ groups there are in the sample. It also allows you to determine who in your sample belongs to which group.

Discriminant analysis uses a collection of interval variables to predict a categorical variable (in your case successful versus unsuccessful outcome).

Which you want depends on exactly what you want to ask. If you want to see which variables predict outcome, and how much of the variance in outcome is predicted by your variables than you need discriminant analysis. If you want to see how patients group or cluster together on independent variables then you need cluster analysis.

I found this chapter helpful on cluster analysis http://www.uk.sagepub.com/burns/website%20material/Chapter%2023%20-%20Cluster%20Analysis.pdf

They also have one on discriminant analysis http://www.uk.sagepub.com/burns/website%20material/Chapter%2025%20-%20Discriminant%20Analysis.pdf

How did you choose where to do your PhD?
C

I applied to any project that sounded kinda interesting.
I had interviews in Liverpool, Manchester, Newcastle, Nottingham, Plymouth, Brighton, and Leeds on topics that were in similar areas but fairly diverse.

I picked the one that picked me!

Post Doctoral Fellowship Interview - Any Advice
C

Meant to add, good luck for the interview!

Post Doctoral Fellowship Interview - Any Advice
C

Hi PinkNeuron. I've had a few post doc interviews and half an hour with a panel an no presentation is pretty normal. I'd expect questions about your PhD - brief summery, main findings, some related questions to your experience, particularly things listed in the job specification/person specification. I'd expect to be asked a couple of questions about the project itself, testing your knowledge of the area (if it's the same field as your PhD this one should be pretty easy for you!). Maybe something about your career aims/plans and why you are interested in this post-doc fellowship. I generally find there isn't that much you can do to prepare other than reading around the topic and looking at some papers by the PI and try not to get too nervous (or is it just me that gets really nervous for interviews!)

Interestingly I also have an interview for a post-doc fellowship next Weds. Beginning to wonder if it's the same one......PM me if you are interested to find out!

What is meant by the term "contribution" in a paper?
C

Sorry if that's not what you meant though. I'm not sure what 'contribution' means. Would this be someone who has contributed something but does not qualify for full authorship, but would be listed in the acknowledgements?

What is meant by the term "contribution" in a paper?
C

It may vary by field, but this is a link to guidelines for medical journals. One journal Ive submitted to you have to state what each author has done to meet the criteria.


Rapid advice needed on Viva
C

At my uni we had an impartial chair at the viva. I had no choice in this and I only knew they would be there a couple of days in advance when they emailed me. They were supportive before hand giving me their phone number and asking to ring if I had any problems. This may have been because we had to travel to London for my viva because my external couldn't get to me. (It was good they did as my viva was in a part of the hospital with card access and no one had explained how I should get in!)

Anyway during the process they didn't say anything other than to introduce everyone at the start. She was a friendly face to glance at as she sat there looking interested and smiling and nodding as I answered stuff. At the end of the viva she asked if I thought the process had been fair and filled in a form.

Personally I think it was good having her there. I had no problems with my viva, but I ca imagine if there are disputes it's good to have someone impartial there.

Question on appendix content
C

Data disk seems like a good idea.
I had no idea some unis require all the raw data. We certainly didn't have to include it for our theses at my uni.

Software: What about reStructuredText instead of Word/LaTex?
C

I used Word for my thesis.

Why? cos it was already on my computer......... because it was easy to send things to my supervisors who also used it.......... because it was all I'd known for the last how ever many years and I didn't (and still don't) know what the alternatives do that Word can't....... and finally because I had no problems with Word, so there was nothing to give me the push to use other things.

Another job app rejection letter
C

I applied for a short term RA post and didn't get an interview. I don't know what it's like at other institutions, but I've been told that at my institution they can't employ someone with a PhD on grade 5 (RA). This would rule out anyone with a PhD as they'd have to be paid grade 6 money, which might not be there in the grant.

Would this count as meaningful experience?
C

Hi oOGJOo, yes definitely put that in. A clinical or neuropsyc PhD is likely to involve some patient assessments so showing you have lots of experience of that would be great. Prior to my Neuropsyc PhD I had some experience of doing assessments, but no where near 300 patients!

I agree with Satchi - put it under work experience. I'd definitely put the lifesklills work shops and councelling work there too.

Good luck with the applications.