Research Methods: IV DV AIM - RN Flashcards

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1
Q

What is an Independent variable?

A

The variable that changes OR is manipulated by the researcher to see if it has an effect on the DV.

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2
Q

What is a dependent variable?

A

This is the variable that the researcher measures to see the effect of the IV.

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3
Q

When identifying the IV in an experiment what must you look for?

A

Look for the different conditions - the factor that is changing will be the IV.

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4
Q

Define operationalisation?

A

Operationalisation means to be specific and clear when defining the independent and dependent variable in an experiment, to make it easier to measure.

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5
Q

Why is operationalising important?

A

If variables are vague (not operationalised) then it would not be possible to repeat the research to check for consistent results.

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6
Q

How does operationalisation impact reliability?

A

Operationalisation increases reliability as if variables are operationalised the other researchers can repeat the research in the same way to check for consistent results.

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7
Q

Practice: Operationalised ‘memory.’

Top tip: You need to provide the scale or measurement where possible.

A

e.g. number of words correctly recalled out of 30

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8
Q

What is an aim?

A

This is a general statement of what the researcher intends to investigate, the purpose of the study.

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9
Q

What is the difference between an aim and a hypothesis?

A

This is a general statement of what the researcher intends to investigate
whilst
a hypothesis is a specific testable statement in which the researcher predicts what will happen between the variables.

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10
Q

An experiment was conducted under the following conditions:

Condition 1: 20 people learned and recalled Word list A in the same location.
Condition 2: The same 20 people learned Word list B in one location and recalled Word list B in a different location.

Identify the operationalised dependent variable in this study.

A

Number/amount of words recalled correctly (from word lists or word list A and word list B).

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11
Q

The variable that changes OR is manipulated by the researcher to see if it has an effect on the DV is called what?

A

An independent variable

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12
Q

What is the variable that the researcher measures to see the effect of the IV.

A

A dependent variable

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13
Q

When someone thing is specific and clear when defining the independent and dependent variable, what is it called?

A

It is Operationalised.

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14
Q

Why do we operationalise?

A

To make it easier to measure.

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15
Q

What is a general statement of what the researcher intends to investigate called?

A

An Aim

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16
Q

What is a hypothesis?

A

A hypothesis is a specific testable statement in which the researcher predicts what will happen between the variables.

17
Q

A researcher wanted to investigate the effect of room temperature on levels of aggression.​ Operationalise the DV (what you measure) in this study.

A

DV- score on a aggression questionnaire (score out of 50. 0 – being not aggressive and 50 being extremely aggressive

18
Q

A researcher wanted to investigate whether concentration is better in the mornings than the evenings. Operationalise the IV (what we manipulate).

A

Time memory test is taken (9am or 9 pm).