Reliability 2: Cronbach's alpha and internal reliability

In this video, I discuss Cronbach's alpha and internal reliability. I also demonstrate how to compute Cronbach's alpha in SPSS and make sense of SPSS output such as corrected-item-total correlation, squared multiple correlations, and Cronbach's alpha if item deleted. Taber's (2017) paper cited int eh video: https://link.springer.com/article/10.... The dataset used is from: Aryadoust, V. (2012). Differential item functioning in while-listening performance tests: The case of IELTS listening test. International Journal of Listening, 26(1), 40-60. DOI: 10.1080/10904018.2012.639649 Aryadoust, V. (2013). Building a validity argument for a listening test of academic proficiency. Newcastle: Cambridge Scholars Publishing.