Reliability Reflection

Reliability Reflection

by HUF04 Nguyễn Ngọc Quỳnh Như -

1. Confidence in Scale’s Reliability

I am very confident in the scale’s reliability. Given the Descriptive Statistics results, where all items have very similar means (3....

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1. Confidence in Scale’s Reliability

I am very confident in the scale’s reliability. Given the Descriptive Statistics results, where all items have very similar means (3.804.01) and consistently low Standard Deviations (0.750.79), it is highly likely that the Cronbach’s Alpha score would be above 0.80.

2. Challenges in Writing Consistent Items

The biggest challenge was avoiding redundancy while maintaining consistency. I had to ensure that questions like "The tools are easy to navigate" and "The design is user-friendly" were distinct enough to provide value, but related enough to point toward the same underlying trait. 

3. Improvements for the Next Draft

  • Add a few "Negative" (Reverse-coded) items: For example, "I find the AI interface confusing." This helps catch respondents who just click "5" for everything without reading.

  • Broaden the scope: While the current items focus on "technical" ease of use, I could add items about the "quality of instructions" or "customer support" to see if those affect the overall perception of user-friendliness.