The purpose of this applet is to provide students with guided practice through problems on hypothesis testing for a population proportion using the method of rejection regions.
Internet browser, flash plug-in, sound card for video
Content Quality Concerns:
The number of decimal places required is a little inconsistent. For example, the one-sided critical z-value for alpha=.05 is to be entered as 1.645, but the value for alpha=.01 is to be entered as 2.33. A good thing is that the author does make note of this and the applet is set up to accept both 1.645 and 1.65. Also, several times as I was reviewing the module, it froze and I had to refresh the page in the middle of a problem. This could prove frustrating to students. It could be a unique problem related to the computer being used, however.
Content Quality Strengths:
This module allows students to repeatedly practice a necessary skill. It allows for multiple attempts, provides feedback and hints, and includes an instructional video. There are several examples that go step by step and give hints.
Ease of Use Concerns:
I'm concerned about the applet freezing up, which happened 3 times as I was reviewing it.
Ease of Use Strengths:
There are hints available and a movie tutorial. The module is highly interactive and engaging.
Potential Effectiveness Concerns:
I do not feel as though all topics a student should know were covered in this tutorial, namely appropriate use of z and t tables, and introduction to p-values. To be fair, however, it does not appear that the author intends for this applet to be a stand-alone lesson given the disclaimer at the beginning of the tool. This resource seems like it could be more of a rote practice tool than a conceptual discovery tool.
Potential Effectiveness Strengths:
There were many examples that allowed the student to get plenty of practice. This module provides practice in a simple and consistent way. One of the complaints I see from students is that each problem seems so different and they don't know when to do what. I think practice with this module would help with that. It would be easy to provide this material as an online resource to students. The material keeps track of the questions students get correct, and this is a nice touch.
Potential Effectiveness Rating:
Source Code Available:
Source Code Available
Intended User Role:
Free for All