نتایج جستجو برای: control variables

تعداد نتایج: 1600429  

Journal: :Transactions of the Society of Instrument and Control Engineers 1984

Journal: :Revista colombiana de investigaciones agroindustriales 2014

Journal: :ESAIM: Control, Optimisation and Calculus of Variations 2019

Journal: :Biometrika 2021

Summary Multi-dimensional heterogeneity and endogeneity are important features of models with multiple treatments. We consider a heterogeneous coefficients model where the outcome is linear combination dummy treatment variables, each variable representing different kind treatment. use control variables to give necessary sufficient conditions for identification average effects. With mutually exc...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1390

abstract the variables affecting the nature of reading comprehension can be classified into two general categories: reader’s variables, and text variables (alderson, 2000). despite the wave of research on vocabulary knowledge as reader’s variable, the role of this knowledge in c-test as a text-dependent test and its interaction with lexical cohesion of the test as a text feature has remained a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...

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