Pertanyaan yang diberi tag instrumental-variables

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Definisi validitas variabel instrumental

Apa yang dimaksud dengan "validitas instrumen"? Dalam kursus ekonometrik saya, kami baru saja menetapkan validitas instrumen sebagaiE[Z|u]=0E[Z|u]=0E[Z|u]=0dimana ZZZ adalah variabel instrumental dan uuuadalah istilah kesalahan dari model regresi univariat. Kemudian, kami juga berbicara tentang...

econometrics instrumental-variables
8
Post hoc test dalam ANOVA desain campuran 2x3 menggunakan SPSS?

Saya memiliki dua kelompok yang terdiri dari 10 peserta yang dinilai tiga kali selama percobaan. Untuk menguji perbedaan antara kelompok dan di tiga penilaian, saya menjalankan ANOVA desain campuran 2x3 dengan group(kontrol, eksperimental), time(pertama, kedua, tiga), dan group x time. Keduanya...

anova mixed-model spss post-hoc bonferroni time-series unevenly-spaced-time-series classification normal-distribution discriminant-analysis probability normal-distribution estimation sampling classification svm terminology pivot-table random-generation self-study estimation sampling estimation categorical-data maximum-likelihood excel least-squares instrumental-variables 2sls total-least-squares correlation self-study variance unbiased-estimator bayesian mixed-model ancova statistical-significance references p-value fishers-exact probability monte-carlo particle-filter logistic predictive-models modeling interaction survey hypothesis-testing multiple-regression regression variance data-transformation residuals minitab r time-series forecasting arima garch correlation estimation least-squares bias pca predictive-models genetics sem partial-least-squares nonparametric ordinal-data wilcoxon-mann-whitney bonferroni wilcoxon-signed-rank traminer regression econometrics standard-error robust misspecification r probability logistic generalized-linear-model r-squared effect-size gee ordered-logit bayesian classification svm kernel-trick nonlinear bayesian pca dimensionality-reduction eigenvalues probability distributions mathematical-statistics estimation nonparametric kernel-smoothing expected-value filter mse time-series correlation data-visualization clustering estimation predictive-models recommender-system sparse hypothesis-testing data-transformation parametric probability summations correlation pearson-r spearman-rho bayesian replicability dimensionality-reduction discriminant-analysis outliers weka