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Glossary entry

Spanish term or phrase:

excesivamente desviadas hacia la izquierda

English translation:

excessively skewed left

Added to glossary by peter jackson
Aug 15, 2014 08:05
9 yrs ago
1 viewer *
Spanish term

excesivamente desviadas hacia la izquierda

Spanish to English Social Sciences Psychology statistics
I am certainly no expert on Item Response Theory! Not quite sure how to phrase this.

La Figura 1 muestra the item response and item information functions de las palabras clave happy y loving (el resto de ítems positivos del AMT tienen funciones muy similares al item loving). En general, los ítems muestran un buen grado de discriminación ya que the response functions no se encuentran *** excesivamente desviadas hacia la izquierda ***, por lo que los participantes no presentan una probabilidad elevada de responder con un recuerdo específico. Los resultados de los item information functions van en la misma línea: la cantidad de información que proporcionan los ítems es adecuado. El ítem happy es el que presenta niveles de discriminación e información más bajos. El hecho de que su response function esté ligeramente más desplazada hacia la izquierda y el pico del information function sea menor sugiere que happy es un ítem más sencillo.
Proposed translations (English)
3 +5 excessively skewed left

Discussion

Chris Neill Aug 15, 2014:
@Donal Indeed, I stand corrected...i am informed by my psychology degree (where a normal/standard distribution is usually symmetrical) The Gaussian bell shaped curve of standard distribution. biomials are way over my head:)
peter jackson (asker) Aug 15, 2014:
@all Thanks again. I seem to have understood, finally!
DLyons Aug 15, 2014:
@Peter Best not to think of it as a "negative value". The horizontal scale is arbitrary - your author is taking "average happiness" as being zero, but (s)he could equally well have measured happiness on a scale of 1-10 with 5.5 representing "average happiness" and the peak of the distribution being a little to the left of that at e.g. 5.2.

And isn't it somehow more encouraging to think of "average happiness" having a positive value like 5.5 rather than zero :-)
MPGS Aug 15, 2014:
@Peter agree
:-)
peter jackson (asker) Aug 15, 2014:
@all Thanks for your help. In the diagram for "happy" the peak, for want of a better word, is slighly to the left of 0, which, as I now understand it, is a positive skew, despite being a negative value??? Wish I could just copy and paste the diagram here ....
MPGS Aug 15, 2014:
@Peter La descripción, en el original, de la Figura 1 no pare científicamente rigurosa. Si "su response function esté ligeramente más desplazada hacia la izquierda", entonces, IMHO, it has a 'positive skew'.
http://davidmlane.com/hyperstat/A11284.html
:-)
DLyons Aug 15, 2014:
@Peter If you have the diagram, compare it to those in
en.wikipedia.org/wiki/Skewness#Relationship_of_mean_and_median

Your text seems to be saying that 'happy' has a slight positive skew but generally the response functions are "not unduly positively skewed". I would not use the word "excessive" in a Statistical text, "unduly" seems 'soft' enough to pass muster.

You need to be careful though, it's quite easy when taking about skewness to use a phrase that means the exact opposite of what one intends to say.
DLyons Aug 15, 2014:
@Chris "If it's not a normal distribution it is skewed" is not quite correct - e.g. binomials, symmetric betas are counter-examples. Rather "If it is not a symmetric distribution, it is skewed"
Chris Neill Aug 15, 2014:
@Peter If he tail is on the left, then it is negatively skewed
peter jackson (asker) Aug 15, 2014:
@Chris In this case presumably it would be a negative skew?
Chris Neill Aug 15, 2014:
@Peter I think, although difficult to be sure, that this accompanies a diagram of distribution of the participants answers...If it's not a normal distribution it is "skewed". Although this is normally referred to as positive or negative skew and not left or right...So I may be way off :)

Proposed translations

+5
18 mins
Selected

excessively skewed left

Peer comment(s):
agree neilmac : I'd rather be skewed than skewered... :-)
14 mins
Definitely :D Thank you. Best :-)
agree Hans Geluk : First thought it was 'biased to the left' but skewed it is! Prefer "(excessively) skewed to the left" though
3 hrs
Thanks, Hans. Yes, 'to the'. Best. :-)
agree Jessica Noyes
3 hrs
Thank you, Jessica. Best. :-)
agree philgoddard : Agree with Hans.
7 hrs
Thank you, Phil. Yes, 'to the'. Best. :-)
agree Cristina Gonzalez
8 hrs
Gracias, Cristina. Saludos. :-)
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Many thanks."
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