Convenience sampling is a non-probability sampling method where participants are selected based on their easy accessibility or convenience, rather than being randomly chosen from the population.

A pilot study is conducted to assess the feasibility of a research study, including testing the procedures, instruments, and data collection methods.

Structured interviews ensure that all participants are asked the same questions in the same order, reducing the risk of interviewer bias and increasing the comparability of responses.

Informed consent is the ethical principle that requires researchers to provide participants with all relevant information about the study before they agree to participate, ensuring that they make an informed decision about their involvement.

Stratified sampling involves dividing the population into strata based on a specific characteristic and then selecting participants from each stratum, ensuring that each stratum is adequately represented in the sample.

Secondary data collection involves gathering data that has already been collected by someone else, such as census data or medical records.

Social desirability bias is a potential limitation of self-report measures, where participants may provide answers that they believe are socially acceptable or desirable, rather than their true feelings or experiences.

Sampling is the process of selecting a representative subset of a population to collect data from.

Qualitative research approaches, such as interviews and focus groups, allow researchers to gain a deeper understanding of individual experiences and perspectives.

Primary data collection involves gathering data directly from participants through methods such as surveys, interviews, or observations.

Convenience samples are more likely to result in sampling bias, as participants are selected based on their easy accessibility rather than their representativeness of the population.

Simple random sampling is a probability sampling method where each member of the population has an equal chance of being selected.

Probability sampling methods allow researchers to generalize their findings to a larger population, as the sample is representative of the population.

Sampling is the process of selecting a representative subset of a population to collect data from, which is then used to make inferences about the entire population.

Interviews are a qualitative data collection method where researchers engage in conversations with participants to gather in-depth information about their experiences, beliefs, and attitudes.