All case studies should follow LIT – Logical – Inclusive – Thorough.
Logical
The case study obviously must be logical. There can be no guessing or estimating. This means that the report must state what was observed, but cannot include any opinion or assumptions that might come from such an observation.
For example, if a veteran subject arrives at an interview holding an empty liquor bottle and is slurring his words, that observation must be made. However, the researcher cannot make the inference that the subject was intoxicated. The report can only include the facts.
With the "Genie" case, researchers witnessed Genie hitting herself and practicing self-harm. It could be assumed that she did this when she was angry. However, this wasn't always the case. She would also hit herself when she was afraid, bored or apprehensive. It is essential that researchers not guess or infer.
Inclusive
In order for a report to be inclusive, it must contain ALL data and findings. The researcher cannot pick and choose which data or findings to use in the report.
Using the example above, if a veteran subject arrives for an interview holding an empty liquor bottle and is slurring his words; any and all additional information that can be garnered should be recorded. For instance, what the subject was wearing, what was his demeanor, was he able to speak and communicate.
When observing a man who might be drunk, it can be easy to make assumptions. However, the researcher cannot allow personal biases or beliefs to sway the findings. Any and all relevant facts must be included, regardless of size or perceived importance. Remember, small details might not seem relevant at the time of the interview. But once it is time to catalogue the findings, small details might become important.
Thorough
The last tip is to be thorough. It is important to delve into every observation. The researcher shouldn't just write down what they see and move on. It is essential to detail as much as possible.
For example, when interviewing veteran subjects, their interview responses are not the only information that should be garnered from the interview. The interviewer should use all senses when detailing their subject.
How does the subject appear? Is he clean? How is he dressed?
How does his voice sound? Is he speaking clearly and making cohesive thoughts? Does his voice sound raspy? Does he speak with a whisper, or does he speak too loudly?
Does the subject smell? Is he wearing cologne, or can you smell that he hasn't bathed or washed his clothes? What do his clothes look like? Is he well dressed, or does he wear casual clothes?
What is the background of the subject? What are his current living arrangements? Does he have supportive family and friends? Is he a loner who doesn't have a solid support system? Is the subject working? If so, is he happy with the job? If he is not employed, why is that? What makes the subject unemployable?
The more information the researcher can get, the better the understanding of the subject, and the overall case study topic. It is important the researcher act as a professional, and not an amateur. When conducting the study, it is better to err on the side of too much research. But when writing the study, you want to be careful not to overdo it.