IS INVERSION A VALID INFERENCE? A REJOINDER

Valid Post-Selection Inference

It is common practice in statistical data analysis to perform data-driven variable selection and derive statistical inference from the resulting model. Such inference enjoys none of the guarantees that classical statistical theory provides for tests and confidence intervals when the model has been chosen a priori. We propose to produce valid “post-selection inference” by reducing the problem to...

Is rule 13 of educational legislation for gifted and talented students in universities a valid rule? A preliminary report

Introduction. Iranian talented university students who take term averages below 17 for at least twice can’t use facilities of educational legislation for gifted and talented students in universities. This study deals with validity of this rule. Methods. Renzullis three ring conception of giftedness was selected as gifted definition. Obtaining grade point averages equal or more than 15 was rega...

Is Echinococcus intermedius a valid species?

Valence Shifting: Is It A Valid Task?

This paper looks at the problem of valence shifting, rewriting a text to preserve much of its meaning but alter its sentiment characteristics. There has only been a small amount of previous work on the task, which appears to be more difficult than researchers anticipated, not least in agreement between human judges regarding whether a text had indeed had its valence shifted in the intended dire...

Qualitative Research Is a Valid Alternative Too

Objective. To describe the main qualitative research techniques through systematic review of Spanish studies published during the previous 5 years. Design. Systematic review. Data sources. The Índice Médico Español (bibliographic database of items published in Spanish health sciences journals) was searched, and systematic searches of the journals Atención Primaria, Gaceta Sanitaria, and Revista...