This post will provide examples of assessments that can be used for reading at the perceptual and selective level.
Perceptual Level
The perceptual level is focused on bottom-up processing of text. Comprehension ability is not critical at this point. Rather, you are just determining if the student can accomplish the mechanical process of reading.
Examples
Reading Aloud-How this works is probably obvious to most teachers. The students read a text out loud in the presence of an assessor.
Picture-Cued-Students are shown a picture. At the bottom of the picture 
This can be extended by using sentences instead of words. For example, if the actual picture shows a man driving a car. There may be a sentence at the bottom of the picture that says “a man is driving a car”. The student would then point to the man in the actual picture who is driving.
Another option is T/F statements. Using our cat example from above. We might write that “There is one cat in the picture” the student would then select T/F.
Other Examples-These includes multiple-choice and written short answer.
Selective Level
The selective level is the next above perceptual. At this level, the student should be able to recognize various aspects of grammar.
Examples
Editing Task-Students are given a reading passage and are asked to fix the grammar. This can happen many different ways. They could be asked to pick the incorrect word in a sentence or to add or remove punctuation.
Pictured-Cued Task-This task appeared at the perceptual level. Now it is more complicated. For example, the students might be required to read statements and label a diagram appropriately, such as the human body or aspects of geography.
Gap-Filling Task-Students read a sentence and complete it appropriately
Other Examples-Includes multiple-choice and matching. The multiple-choice may focus on grammar, vocabulary, etc. Matching attempts to assess a students ability to pair similar items.
Conclusion
Reading assessment can take many forms. The examples here provide ways to deal with this for students who are still highly immature in their reading abilities. As fluency develops more complex measures can be used to determine a students reading capability.