Psych Unit 2 Key Terms

1. A study that combines the data results of many studies and analyzes them as though they were all one big study.

• 1. Longitudinal study

• 1. Meta-analysis

• 1. Cross-sectional study

• 1. Cross-cultural study

1. Numerical information that can be measured and analyzed statistically, such as scores, frequencies, or quantities.

• 1. Quantitative data

• Validity

• 1. Qualitative data

• Reliability

Tags

NGSS.HS-LS3-3

NGSS.HS-LS2-2

1. A method of collecting samples where participants are selected based on their easy availability or proximity to the researcher.

• 1. Representative sample

• 1. Cross-cultural sample

• 1. Random sample

• 1. Convenience sample

1. The factor that is manipulated or changed by the researcher to observe its effect on the dependent variable.

• Hypothesis

• 1. Independent variable

• 1. Null hypothesis

• 1. Dependent variable

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

1. The group of participants that does not receive the treatment, serving as a baseline for comparison with the experimental group.

• 1. Experimental group

• 1. Independent variable

• 1. Control group

• 1. Dependent variable

1. Occurs when the individuals who choose not to participate in a survey differ systematically from those who do, leading to a potential distortion in the survey results.

• 1. Non-response bias

• 1. Experimenter bias

• 1. Social desirability bias

• 1. Personal bias

1. Research in which either the observer OR the participants are unaware of which participants received which treatments.

• 1. Single-blind experiment

• 1. Control group

• 1. Double-blind experiment

• 1. Experimental group

1. A method of collecting samples where every individual in the population has an equal chance of being selected.

• 1. Representative sample

• 1. Cross-sectional sample

• 1. Random sample

• 1. Convenience sample

1. A statement of a testable prediction about the relationship between two or more variables in a study.

• 1. Hypothesis

• 1. Independent variable

• 1. Null hypothesis

• 1. Dependent variable

1. Occurs when a researcher’s expectations or beliefs unintentionally influence the results or interpretation of the study.

• 1. Non-response bias

• 1. Experimenter bias

• 1. Social desirability bias

• 1. Personal bias