Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 236

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 309

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 366

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 368

Warning: mysqli_fetch_assoc() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 375

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 436

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /var/www/websm.org/www/main/Skeleton/menus.php on line 910

Supplements

Title Sampling aspects in web survey practice (Release date: January 15th, 2017)
Author(s) Vehovar, V.
Abstract

In this supplement to Chapter 2, we adtitionally discuss aspects of sampling in web surveys. For example, when drawing a simple random sample, it is convenient to use systematic sample selection, where we beforehand apply some sorting (e.g. according region, gender, type of unit), which can strongly improve the structure and representation of the sample. When the survey population is composed from distinct parts (e.g. countries, study programs, companies of different size, etc.), we should consider sampling independently according to sampling stratification theory.

 

Print


Warning: Unknown: write failed: No space left on device (28) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php5) in Unknown on line 0