Working Through the Mrs. Frisby and the Rats of NIMH Test
Most teachers assign this novel in grades four through six. The test that follows is usually a standard reading comprehension exam. It covers plot details, character motivations, and some thematic analysis. You can find printable versions of the test scattered across educational websites, but the quality varies widely. I've proctored this test more times than I care to count. One thing that trips people up is the multiple-choice section on the Rats' moral dilemma. Students pick the obvious answer too quickly. The question about whether Dr. Nicodemus was right to steal from the farmer has layers. The answer isn't just "stealing is wrong." It's about survival versus ethics, which the book actually explores pretty thoroughly if you paid attention during those chapters in Part Two.
Where to Find the Mrs Frisby And The Rats Of Nimh Test
Resources like TeachersPayTeachers have full test packets for around five dollars. Some are free on sites like K5 Learning or ReadWorks. The free ones tend to be simpler. If your students are advanced readers, you'll want the paid versions that include short answer and essay questions. A few years ago I was working with a class where the published test questions were way too basic. The kids had finished the book in two days and were bored by question number three. My workaround was to pull specific passages and rewrite the questions myself, focusing on inference rather than recall. I took the scene where Mrs. Frisby decides to move the nest and asked what her reasoning revealed about her character. That single change made the test actually measure comprehension instead of memory. Here's something most test makers miss. The NIMH in the title stands for National Institute of Mental Health. A lot of students don't catch that, and it comes up on vocabulary sections sometimes. The book is set partly at a research laboratory. Understanding that context helps with the darker undertones of the story, which you should definitely address before testing because some questions reference the experiments without explaining them directly.
Another common issue is the timeline questions. The story jumps between the present day and the backstory of how the rats got their intelligence. On my tests I always include at least one question asking students to put events in order. This sounds simple. About thirty percent of students still mix up when Dr. Grogan performed the experiments versus when Mrs. Frisby approached the rats for help. If you're looking for the test itself, search for "Mrs. Frisby and the Rats of NIMH test PDF" and you'll get results within seconds. Just check the answer key before you hand it out. I once used a version where the correct answer for question eight didn't match the answer key, and that was a rough afternoon. The writing portion is usually where the test gets interesting. Most versions ask students to write about what they would have done differently if they were in Mrs. Frisby's position. I've seen some surprisingly thoughtful responses from kids who normally write three sentences max. It works because the book puts you in a genuinely difficult situation early on and never lets you forget it.
Get the Full Details
One limitation of this test that nobody mentions is that it doesn't account for students who struggled with the reading level. The book uses fairly complex sentence structures and some older vocabulary. If a student has reading difficulties, the test measures their decoding ability more than their understanding of the story. For those students I recommend reading the book aloud together and then giving them a modified version with oral questioning instead of written answers. It takes more time but it gives you actual data about whether they understood the material. The themes of the book are solid for discussion. Intelligence, community, sacrifice, and the ethics of scientific experimentation. The test touches on these but usually only at surface level. If you want to push students further, add one open-ended question at the end about whether the ends justified the means for the rats. You won't get consensus and that's the point.
