Research Methods and Population Studies

These flashcards cover key concepts related to research methods, statistical analysis, and population studies.

The __ states that there is no relationship between the independent and dependent variables.

null hypothesis

Using a __ technique allows researchers to investigate changes across an environmental gradient.

systematic sampling

In order to ensure that sampled areas are not biased, the best way to conduct sampling is to use __ sampling.

random sampling

The __ is a method used to estimate the population size of a species through capture-mark-recapture techniques.

Lincoln Index

Standard deviation is used to measure __ in data collected from samples.

variability

During a preliminary study, a __ should be created to test the reliability of the method or hypotheses being tested.

pilot study

An increase in light intensity can affect the rate of __ in plants, which is a key abiotic factor.

photosynthesis

When measuring species richness, the __ is the number of different species present in a defined area.

species diversity

The technique called __ involves capturing and marking individuals before releasing them to estimate population size.

capture-mark-recapture

The __ variable is deliberately manipulated in an experiment, while the dependent variable is measured as a result.

independent variable