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El objetivo del libro es proporcionar a los lectores las
herramientas necesarias para evaluar la calidad psicome trica de
las medidas educativas y psicolo gicas, asi como de encuestas y
cuestionarios. Cada capi tulo aborda un tema relativo a la pra
ctica psicome trica y de la medida, con e nfasis en la aplicacio n.
Los temas sera n tratados brevemente desde una perspectiva teo
rica/te cnica con el fin de proporcionar al lector los antecedentes
necesarios para utilizar e interpretar correctamente los ana lisis
estadi sticos que se presentara n con posteriormente. Este libro
esta dirigido a investigadores, profesionales y estudiantes de
posgrado (Ma ster y Doctorado) que buscan una gui a para realizar
ana lisis psicome tricos de diferentes instrumentos de evaluacio n.
Asumimos un nivel ba sico de conocimientos estadi sticos, pero
estos conceptos se ira n repasando a lo largo de los diferentes
capi tulos. Nos imaginamos que este texto (a) esperara
pacientemente en algunos despachos implorando ser entregado, como
recurso, a un estudiante, (b) tendra un lugar fijo en las mesas de
los despachos donde continuamente, y debido a su uso diario, sera
el primero del monto n, (c) estara en las mochilas de los
estudiantes de postgrado, y los acompan ara felizmente desde casa
al trabajo o a las clases y vuelta, (d) aparecera orgullosamente
como un texto de referencia en los programas y guia s de estudio, y
finalmente (e) como ocasional posavasos mientras se reflexiona
profundamente acerca de co mo resolver los problemas de medida.
Esperamos que a trave s de estos usos, sobre todo el u ltimo,
aportar algu n conocimiento y ayuda que permita a los lectores
aplicar adecuadamente las te cnicas y los conceptos abordados en
este manual. The goal of the book is to provide readers with the
tools necessary for assessing the psychometric qualities of
educational and psychological measures as well as surveys and
questionnaires. Each chapter will cover an issue pertinent to
psychometric and measurement practice, with an emphasis on
application. Topics will be briefly discussed from a
theoretical/technical perspective in order to provide the reader
with the background necessary to correctly use and interpret the
statistical analyses that will be presented subsequently. The
anticipated audience for this book includes researchers,
practitioners, and graduate students searching for a guide to
perform common psychometric analyses on various assessments, as
discussed in many psychometric texts. We envision that this text
will (a) patiently wait on some office shelves begging to be handed
to a student as a resource, (b) have a permanent home on desks
where it continually rises to the top of the stacks for daily use
of the applied researcher, (c) be happily carried in bags to and
from work and class by the graduate student learning techniques,
(d) be listed proudly as a reference text on syllabi, and finally
(e) as an occasional drink coaster while deep thoughts are pondered
about how to solve measurement problems. We hope that through such
uses, particularly the latter, that we have provided some insight
and assistance to the user in appropriately applying the techniques
and concepts discussed.
The book is designed primarily for graduate students (or advanced
undergraduates) who are learning psychometrics, as well as
professionals in the field who need a reference for use in their
practice. We would assume that users have some basic knowledge of
using SAS to read data and conduct basic analyses (e.g.,
descriptive statistics, frequency distributions). In addition, the
reader should be familiar with basic statistical concepts such as
descriptive statistics (e.g., mean, median, variance, standard
deviation), percentiles and the rudiments of hypothesis testing.
They should also have a passing familiarity with issues in
psychometrics such as reliability, validity and test/survey
scoring. The authors do not assume any more than basic familiarity
with these issues, and devote a portion of each chapter (as well as
the entire first chapter) to reviewing many of these basic ideas
for those not familiar with them. This book will be useful either
as a primary text for a course on applied measurement where SAS is
the main platform for instruction, or as a supplement to a more
theoretical text. The readership will include graduate students,
faculty members, data analysts and psychometricians responsible for
analysis of survey response data, as well as educational and
psychological assessments. This book aims to provide readers with
the tools necessary for assessing the psychometric qualities of
educational and psychological measures as well as surveys and
questionnaires. Each chapter covers an issue pertinent to
psychometric and measurement practice, with an emphasis on
application. Topics are briefly discussed from a
theoretical/technical perspective in order to provide the reader
with the background necessary to correctly use and interpret the
statistical analyses that is presented subsequently. Readers are
then presented with examples illustrating a particular concept
(e.g., reliability). These examples include a discussion of the
particular analysis, along with the SAS code necessary to conduct
them. The resulting output is then discussed in detail, focusing on
the interpretation of the results. Finally, examples of how these
results might be written up is also included in the text. This
mixture of theory with examples of actual practice will serve the
reader both as a pedagogical tool and as a reference work.
The book is designed primarily for graduate students (or advanced
undergraduates) who are learning psychometrics, as well as
professionals in the field who need a reference for use in their
practice. We would assume that users have some basic knowledge of
using SAS to read data and conduct basic analyses (e.g.,
descriptive statistics, frequency distributions). In addition, the
reader should be familiar with basic statistical concepts such as
descriptive statistics (e.g., mean, median, variance, standard
deviation), percentiles and the rudiments of hypothesis testing.
They should also have a passing familiarity with issues in
psychometrics such as reliability, validity and test/survey
scoring. The authors do not assume any more than basic familiarity
with these issues, and devote a portion of each chapter (as well as
the entire first chapter) to reviewing many of these basic ideas
for those not familiar with them. This book will be useful either
as a primary text for a course on applied measurement where SAS is
the main platform for instruction, or as a supplement to a more
theoretical text. The readership will include graduate students,
faculty members, data analysts and psychometricians responsible for
analysis of survey response data, as well as educational and
psychological assessments. This book aims to provide readers with
the tools necessary for assessing the psychometric qualities of
educational and psychological measures as well as surveys and
questionnaires. Each chapter covers an issue pertinent to
psychometric and measurement practice, with an emphasis on
application. Topics are briefly discussed from a
theoretical/technical perspective in order to provide the reader
with the background necessary to correctly use and interpret the
statistical analyses that is presented subsequently. Readers are
then presented with examples illustrating a particular concept
(e.g., reliability). These examples include a discussion of the
particular analysis, along with the SAS code necessary to conduct
them. The resulting output is then discussed in detail, focusing on
the interpretation of the results. Finally, examples of how these
results might be written up is also included in the text. This
mixture of theory with examples of actual practice will serve the
reader both as a pedagogical tool and as a reference work.
El objetivo del libro es proporcionar a los lectores las
herramientas necesarias para evaluar la calidad psicome trica de
las medidas educativas y psicolo gicas, asi como de encuestas y
cuestionarios. Cada capi tulo aborda un tema relativo a la pra
ctica psicome trica y de la medida, con e nfasis en la aplicacio n.
Los temas sera n tratados brevemente desde una perspectiva teo
rica/te cnica con el fin de proporcionar al lector los antecedentes
necesarios para utilizar e interpretar correctamente los ana lisis
estadi sticos que se presentara n con posteriormente. Este libro
esta dirigido a investigadores, profesionales y estudiantes de
posgrado (Ma ster y Doctorado) que buscan una gui a para realizar
ana lisis psicome tricos de diferentes instrumentos de evaluacio n.
Asumimos un nivel ba sico de conocimientos estadi sticos, pero
estos conceptos se ira n repasando a lo largo de los diferentes
capi tulos. Nos imaginamos que este texto (a) esperara
pacientemente en algunos despachos implorando ser entregado, como
recurso, a un estudiante, (b) tendra un lugar fijo en las mesas de
los despachos donde continuamente, y debido a su uso diario, sera
el primero del monto n, (c) estara en las mochilas de los
estudiantes de postgrado, y los acompan ara felizmente desde casa
al trabajo o a las clases y vuelta, (d) aparecera orgullosamente
como un texto de referencia en los programas y guia s de estudio, y
finalmente (e) como ocasional posavasos mientras se reflexiona
profundamente acerca de co mo resolver los problemas de medida.
Esperamos que a trave s de estos usos, sobre todo el u ltimo,
aportar algu n conocimiento y ayuda que permita a los lectores
aplicar adecuadamente las te cnicas y los conceptos abordados en
este manual. The goal of the book is to provide readers with the
tools necessary for assessing the psychometric qualities of
educational and psychological measures as well as surveys and
questionnaires. Each chapter will cover an issue pertinent to
psychometric and measurement practice, with an emphasis on
application. Topics will be briefly discussed from a
theoretical/technical perspective in order to provide the reader
with the background necessary to correctly use and interpret the
statistical analyses that will be presented subsequently. The
anticipated audience for this book includes researchers,
practitioners, and graduate students searching for a guide to
perform common psychometric analyses on various assessments, as
discussed in many psychometric texts. We envision that this text
will (a) patiently wait on some office shelves begging to be handed
to a student as a resource, (b) have a permanent home on desks
where it continually rises to the top of the stacks for daily use
of the applied researcher, (c) be happily carried in bags to and
from work and class by the graduate student learning techniques,
(d) be listed proudly as a reference text on syllabi, and finally
(e) as an occasional drink coaster while deep thoughts are pondered
about how to solve measurement problems. We hope that through such
uses, particularly the latter, that we have provided some insight
and assistance to the user in appropriately applying the techniques
and concepts discussed.
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