When handling chemicals during lab it is important to proceed with caution. Wear gloves whenever pouring chemicals or handling them. If there is a spill be sure to let the teacher know. If you have to dispose of chemicals, always use the waste containers provided on your lab tables.
11 âUnsystematicâ Threats to Reliability 4. Instrument reliabilityâthe research instrument or measurement approach itself (e.g., poorly worded questions, quirk in mechanical device)5. Data processing reliabilityâmanner in which data are handled (e.g., miscoding).
In research, the term reliability means repeatability or consistency. A measure is considered reliable if it would give us the same result over and over again (assuming that what we are measuring isn't changing!).Let's explore in more detail what it means to say that a measure is repeatable or consistent.We'll begin by defining a measure that we'll arbitrarily label X.It might be a person's score on a math achievement test or a measure of severity of illness.et's explore in more detail what it means to say that a measure is repeatable or consistent. We'll begin by defining a measure that we'll arbitrarily label X. It might be a person's score on a math achievement test or a measure of severity of illness.