Unscalable

Unscalable PDF Author: Charlie Guo
Publisher: Inkshares
ISBN: 1941758568
Category : Business & Economics
Languages : en
Pages : 139

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Book Description
In Unscalable, startup founder and software engineer Charlie Guo uncovers the lesser-known backstories of failure and success in interviews with some of the most daring founders in Silicon Valley. While much is made of the mythology of brilliant leadership and “overnight” success stories, these interviews pull back the veil on a much more eclectic mix of strategies and experiments, revealing the longer and less predictable road to success in Silicon Valley. Guo gives us a look at the edgier moments behind the glamor of the tech boom. To the question “Will it scale?” this book suggests that more often than not, the answer may be “No!”—especially as fledgling ideas try to shape-shift their way into actual products and companies. Some of those new entities will themselves spawn new startups, while some will fade into oblivion. From vacuuming out hundreds of cars in a green vest to learning that Britney Spears was their newest account, founders share the peaks and valleys that have made startups one of the most riveting stories of the century.

Unscalable

Unscalable PDF Author: Charlie Guo
Publisher: Inkshares
ISBN: 1941758568
Category : Business & Economics
Languages : en
Pages : 139

Get Book Here

Book Description
In Unscalable, startup founder and software engineer Charlie Guo uncovers the lesser-known backstories of failure and success in interviews with some of the most daring founders in Silicon Valley. While much is made of the mythology of brilliant leadership and “overnight” success stories, these interviews pull back the veil on a much more eclectic mix of strategies and experiments, revealing the longer and less predictable road to success in Silicon Valley. Guo gives us a look at the edgier moments behind the glamor of the tech boom. To the question “Will it scale?” this book suggests that more often than not, the answer may be “No!”—especially as fledgling ideas try to shape-shift their way into actual products and companies. Some of those new entities will themselves spawn new startups, while some will fade into oblivion. From vacuuming out hundreds of cars in a green vest to learning that Britney Spears was their newest account, founders share the peaks and valleys that have made startups one of the most riveting stories of the century.

Measuring Underemployment

Measuring Underemployment PDF Author: Clifford C. Clogg
Publisher: Academic Press
ISBN: 1483276244
Category : Political Science
Languages : en
Pages : 297

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Book Description
Measuring Underemployment: Demographic Indicators for the United States discusses the Labor Utilization Framework of Hauser and Sullivan, which is a measurement scheme that posits the existence of three dimensions, or forms, of underemployment— time, income, and skill-utilization. This book describes the conceptual groundwork, operational measurement, and implications of the Labor Utilization Framework on the way the labor force aggregates. The essential elements of the socio-demographic theory of the labor force with the logical unity provided by both the Labor Utilization Framework and the specific methodologies adopted for its analysis are also elaborated. This text likewise covers the methods for latent structure analysis and cohort analysis, including the theory of frictional underemployment; "class structure governing the distribution of labor market rewards; tempo of social change in the labor force; "productive value of a population; and "true dependency on productive labor. This publication is a good source for students and researchers concerned with different labor force topics that can be plausibly studied from the viewpoint of the Hauser-Sullivan framework.

Latent Class Scaling Analysis

Latent Class Scaling Analysis PDF Author: C. Mitchell Dayton
Publisher: SAGE
ISBN: 9780761913238
Category : Mathematics
Languages : en
Pages : 108

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Book Description
The author presents an accessible guide to latent class scaling models for binary response variables. Covered in the book are: a survey on academic cheating; children's mastery of spatial tasks; medical diagnosis of lung disease.

Psychometrics

Psychometrics PDF Author: C.R. Rao
Publisher: Elsevier
ISBN: 0444521038
Category : Mathematics
Languages : en
Pages : 1191

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Book Description
This volume, representing a compilation of authoritative reviews on a multitude of uses of statistics in epidemiology and medical statistics written by internationally renowned experts, is addressed to statisticians working in biomedical and epidemiological fields who use statistical and quantitative methods in their work. While the use of statistics in these fields has a long and rich history, explosive growth of science in general and clinical and epidemiological sciences in particular have gone through a see of change, spawning the development of new methods and innovative adaptations of standard methods. Since the literature is highly scattered, the Editors have undertaken this humble exercise to document a representative collection of topics of broad interest to diverse users. The volume spans a cross section of standard topics oriented toward users in the current evolving field, as well as special topics in much need which have more recent origins. This volume was prepared especially keeping the applied statisticians in mind, emphasizing applications-oriented methods and techniques, including references to appropriate software when relevant. The contributors are internationally renowned experts in their respective areas. This volume addresses emerging statistical challenges in epidemiological, biomedical, and pharmaceutical research. It features: methods for assessing Biomarkers, analysis of competing risks; clinical trials including sequential and group sequential, crossover designs, cluster randomized, and adaptive designs; and, structural equations modelling and longitudinal data analysis.

Applied Latent Class Analysis

Applied Latent Class Analysis PDF Author: Jacques A. Hagenaars
Publisher: Cambridge University Press
ISBN: 1139439235
Category : Social Science
Languages : en
Pages : 478

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Book Description
Applied Latent Class Analysis introduces several innovations in latent class analysis to a wider audience of researchers. Many of the world's leading innovators in the field of latent class analysis contributed essays to this volume, each presenting a key innovation to the basic latent class model and illustrating how it can prove useful in situations typically encountered in actual research.

Latent Class Analysis

Latent Class Analysis PDF Author: Allan L. McCutcheon
Publisher: SAGE
ISBN: 9780803927520
Category : Mathematics
Languages : en
Pages : 104

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Book Description
Latent class analysis is a powerful tool for analyzing the structure of relationships among categorically scored variables. It enables researchers to explore the suitability of combining two or more categorical variables into typologies or scales. It also provides a method for testing hypotheses regarding the latent structure among categorical variables.

Handbook of Diagnostic Classification Models

Handbook of Diagnostic Classification Models PDF Author: Matthias von Davier
Publisher: Springer Nature
ISBN: 3030055841
Category : Education
Languages : en
Pages : 646

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Book Description
This handbook provides an overview of major developments around diagnostic classification models (DCMs) with regard to modeling, estimation, model checking, scoring, and applications. It brings together not only the current state of the art, but also the theoretical background and models developed for diagnostic classification. The handbook also offers applications and special topics and practical guidelines how to plan and conduct research studies with the help of DCMs. Commonly used models in educational measurement and psychometrics typically assume a single latent trait or at best a small number of latent variables that are aimed at describing individual differences in observed behavior. While this allows simple rankings of test takers along one or a few dimensions, it does not provide a detailed picture of strengths and weaknesses when assessing complex cognitive skills. DCMs, on the other hand, allow the evaluation of test taker performance relative to a potentially large number of skill domains. Most diagnostic models provide a binary mastery/non-mastery classification for each of the assumed test taker attributes representing these skill domains. Attribute profiles can be used for formative decisions as well as for summative purposes, for example in a multiple cut-off procedure that requires mastery on at least a certain subset of skills. The number of DCMs discussed in the literature and applied to a variety of assessment data has been increasing over the past decades, and their appeal to researchers and practitioners alike continues to grow. These models have been used in English language assessment, international large scale assessments, and for feedback for practice exams in preparation of college admission testing, just to name a few. Nowadays, technology-based assessments provide increasingly rich data on a multitude of skills and allow collection of data with respect to multiple types of behaviors. Diagnostic models can be understood as an ideal match for these types of data collections to provide more in-depth information about test taker skills and behavioral tendencies.

The Analysis of Cross-Classified Categorical Data

The Analysis of Cross-Classified Categorical Data PDF Author: Stephen E. Fienberg
Publisher: Springer Science & Business Media
ISBN: 0387728244
Category : Mathematics
Languages : en
Pages : 208

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Book Description
Until recent years the statistical and computational techniques available for the analysis of cross-classified data were quite limited. This book presents some of the recent work on the statistical analysis of cross-classified data using longlinear models.

Qualitative and Quantitative Social Research

Qualitative and Quantitative Social Research PDF Author: Robert King Merton
Publisher: Simon and Schuster
ISBN: 0029209307
Category : Sociology
Languages : en
Pages : 440

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Book Description


Mokken Scale Analysis in Language Assessment

Mokken Scale Analysis in Language Assessment PDF Author: Purya Baghaei
Publisher: Waxmann Verlag
ISBN: 383099446X
Category : Language Arts & Disciplines
Languages : en
Pages : 168

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Book Description
Mokken Scale Analysis collectively refers to a set of methods to examine the fit of data to two nonparametric Item Response Theory (IRT) models known as the Monotone Homogeneity Model (MHM) and the Double Monotonicity Model (DMM). As nonparametric IRT models, MHM and DMM are, compared to their parametric counterparts, easier to fit to the noisy data that social science researchers usually work with. Furthermore, the logic behind these models is a lot easier to grasp by researchers who do not have a strong background in algebra. This book is an introductory treatment of the topic with examples from the field of language assessment and research. It describes the basics of MSA and includes step-by-step tutorials to help the readers run the analyses with the R package mokken. Furthermore, case studies are reported to illustrate the concepts introduced throughout the book. The book is comprehensive and reader-friendly and can be followed by most empirical researchers in the social sciences. It is suitable for all researchers and practitioners in the fields of behavioral and social sciences who are engaged in test and scale development. It is an easy-to-use manual that covers everything that you need to know to apply Mokken scaling confidently.