Two-Way ANOVA – Worksheet 1

Two-Way ANOVA – Worksheet 1

For each of the following descriptions of studies:
1. identify the independent variables
2. identify the dependent variables
3. describe the design (i.e., 2 X 3)
4. construct a table and insert the data
5. graph the results
6. determine if there is likely to be any significant main effect(s) and/or interaction

1. The following data are from a study on the effects of imagery instructions and presentation rate on memory for a 30-word list. In this study, a group of participants were given instructions to create images in their mind when they read each word. A second group of participants were just told to read the words (no additional instructions are given). Half of each group was given 2 seconds to study each word, whereas the other half was given 4 seconds to study each word.

Imagery, 2 seconds – 22 words IV: ________________________________
Imagery, 4 seconds – 22 words IV: ________________________________
No instructions, 2 seconds – 14 words DV: ________________________________
No instructions, 4 seconds – 14 words Describe the design: ___________________
Main Effect of first IV: yes / no
Main Effect of second IV: yes / no
Interaction Effect: yes / no
2. The following data were from a study on the effects of imagery instructions and gender on memory for a 30-word list. In this study, a group of participants were given instructions to create images in their mind when they read each word. A second group of participants were told to read the words (no additional instructions were given).

Imagery, Males – 18 words IV: ________________________________
Imagery, Females – 22 words IV: ________________________________
No instructions, Males – 14 words DV: _______________________________
No instructions, Females – 18 words Describe the design: ___________________
Main Effect of first IV: yes / no
Main Effect of second IV: yes / no
Interaction Effect: yes / no

3. The following data are from a study on the effects of imagery instructions and presentation rate on memory for a 30-word list. In this study, a group of participants were given instructions to create images in their mind when they read each word. A second group of participants were just told to read the words (no additional instructions are given). Half of each group was given 2 seconds to study each word, whereas the other half was given 4 seconds to study each word.

Imagery, 2 seconds – 28 words IV: ________________________________
Imagery, 4 seconds – 28 words IV: ________________________________
No instructions, 2 seconds – 12 words DV: ________________________________
No instructions, 4 seconds – 28 words Describe the design: ___________________
Main Effect of first IV: yes / no
Main Effect of second IV: yes / no
Interaction Effect: yes / no

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