Statistics Chapter 1.3 Test

Simple Random Sampling

• A sampling method where every member has an equal chance of being selected.

• A sampling method that is convenient and easy to implement.

• A sampling method involving categorizing the population into subgroups.

• A sampling method that involves selecting entire groups for study.

Stratified Random Sampling

• A sampling method where every member has an equal chance of being selected.

• A sampling method that involves categorizing the population into subgroups and then taking a sample from each subgroup.

• A sampling method that involves categorizing the population into subgroups.A sampling method involving the selection of groups, followed by data collection from all members of the group.

• A sampling method that involves selecting entire groups for study.A sampling method that involves choosing subjects who are easiest to reach.

Cluster Sampling

• A sampling method that involves categorizing the population into subgroups.

• A sampling method that involves the selection of groups, followed by data collection from all members of the group.

• A sampling method that involves choosing subjects who are easiest to reach.

• A sampling method where every member has an equal chance of being selected.

Experimental Unit

• The subject or set of subjects on which the experiment is performed.

• A measure of the effect size in an experiment.

• The variable that is being manipulated in an experiment.

• The underlying group that the study aims to draw conclusions about.

Confounding Variables

• • Variables other than the independent variable that may affect the outcome.

• • Variables that are intentionally manipulated to observe their effect on another variable.

• • Variables that are not part of the study but are thought to affect its outcome.

• • Variables that have a known or suspected causal relationship with the dependent variable.

Placebo Effect

• • The effect of blinding both the participants and the experimenters.

• • The effect of a real drug or treatment.

• • The effect of believing that one is receiving treatment when they are not.

• • The effect of not being aware of the treatment one is receiving.

Double-Blind Experiment

• • An experiment where only the experimenters are unaware of the treatment being given.

• • An experiment where both the participants and the experimenters know who is receiving what treatment.

• • An experiment where only the participants are unaware of the treatment they are receiving.

• • An experiment where neither the participants nor the experimenters know who is receiving a particular treatment.

Randomized Block Design

• • A design in which participants are separated into blocks based on some attribute and then randomly assigned to different treatments within each block.

• • A design where all participants receive all treatments.

• • A design where neither the participants nor the experimenters know who is receiving a particular treatment.

• • A design where each participant has an equal chance of receiving any treatment.

Blinding

• • The practice of dividing participants into groups based on a certain characteristic.

• • The practice of choosing subjects who are easiest to reach.

• • The practice of hiding the results of a study until it is published.

• • The practice of not letting participants know the specifics of the treatment they are receiving to prevent bias.

Convenience Sampling

• • The practice of dividing participants into groups based on a certain characteristic.

• • The practice of choosing subjects who are easiest to reach.

• • The practice of hiding the results of a study until it is published.

• • The practice of not letting participants know the specifics of the treatment they are receiving to prevent bias.