What are good techniques to use for scientific investigation? Poor techniques?

The book "A Guide to the Perplexed Organic Chemist" is likely still in print and can be found in university libraries. It offers a wealth of advice and best practices for synthetic chemists working with either organic or inorganic materials.

Good techniques for scientific investigation include:

1. Formulating clear research questions or hypotheses.
2. Designing controlled experiments or observational studies.
3. Collecting and analyzing data systematically and accurately.
4. Conducting experiments with appropriate controls and replicates.
5. Using reliable and calibrated equipment.
6. Applying statistical methods to interpret data and draw conclusions.
7. Communicating findings through peer-reviewed publications or presentations.

Poor techniques for scientific investigation include:

1. Failing to define clear research questions or hypotheses.
2. Conducting experiments without proper controls or replicates.
3. Using unreliable or poorly calibrated equipment.
4. Ignoring or misinterpreting data that contradict hypotheses.
5. Cherry-picking data to support preconceived conclusions.
6. Drawing conclusions that are not supported by evidence.
7. Failing to disclose conflicts of interest or biases.