AICE PSYCH MIDTERM REVIEW PT 1 - Research Methods

which of the following describes aim? (CHOOSE ALL THAT APPLY)

• a single statement that describes the purpose or reason for why we are conducting an experiment

• should be brief and concise

• state the purpose of the experiment

• written before a study is run

What is a hypothesis?

• predicts the findings of a study. It is written before the study is run

• a statement predicting the direction of a relationship between variables.

• a statement predicting that one variable will be related to one another but it won’t state in which direction

• results obtained were due to chance and not the independent variable that the researcher changed or the situation that they engineered

Tags

NGSS.HS-LS2-3

NGSS.HS-PS1-2

What is a directional hypothesis?

• predicts the findings of a study. It is written before the study is run

• a statement predicting the direction of a relationship between variables.

• a statement predicting that one variable will be related to one another but it won’t state in which direction

• results obtained were due to chance and not the independent variable that the researcher changed or the situation that they engineered

What is a non directional hypothesis?

• predicts the findings of a study. It is written before the study is run

• a statement predicting the direction of a relationship between variables.

• a statement predicting that one variable will be related to one another but it won’t state in which direction

• results obtained were due to chance and not the independent variable that the researcher changed or the situation that they engineered

What is a null hypothesis?

• predicts the findings of a study. It is written before the study is run

• a statement predicting the direction of a relationship between variables.

• a statement predicting that one variable will be related to one another but it won’t state in which direction

• results obtained were due to chance and not the independent variable that the researcher changed or the situation that they engineered

Operationalize Variables?

• It is expected to be responsible (cause) for changes in the dependent variable

• the factor under investigation in an experiment which is manipulated to create two or more conditions.

• Put into measurable form

• Researcher manipulates the IV to produce two or more conditions

Tags

NGSS.HS-PS2-5

Independent Variable (IV)?

• a variable which either acts randomly, affecting the DV in all levels of the IV, or systematically, so it can obscure the effect of the IV, making the results difficult to interpret

• the factor in an experiment which is measured and is expected to change (effect) under the influence of the independent variable.

• the factor under investigation in an experiment which is manipulated to create two or more conditions.

• Any difference in the number of words spelt correctly (out of 25) of females compared to males is due to chance.

Tags

NGSS.MS-PS2-2

Dependent Variable (DV)?

• a variable which either acts randomly, affecting the DV in all levels of the IV, or systematically, so it can obscure the effect of the IV, making the results difficult to interpret

• the factor in an experiment which is measured and is expected to change (effect) under the influence of the independent variable.

• the factor under investigation in an experiment which is manipulated to create two or more conditions.

• Any difference in the number of words spelt correctly (out of 25) of females compared to males is due to chance.

Extraneous Variable?

• a variable which either acts randomly, affecting the DV in all levels of the IV, or systematically, so it can obscure the effect of the IV, making the results difficult to interpret

• the factor in an experiment which is measured and is expected to change (effect) under the influence of the independent variable.

• the factor under investigation in an experiment which is manipulated to create two or more conditions.

• Any difference in the number of words spelt correctly (out of 25) of females compared to males is due to chance.

an investigation looking for a causal relationship in which an independent variable is manipulated and is expected to be responsible for changes in the dependent variable is?

• independent variable

• an experiment

• in a lab

• control