**Psych248 F20 - Lab 7 Worksheet: More Hypothesis Testing using t-test** **Part 2. Repeated Measures t** The data below are from a sensory deprivation study looking at hearing threshold before and after one hour in a sensory deprivation chamber. Seven subjects had their hearing checked both before and after they were in a dark, silent chamber. Hearing threshold is the minimum sound level you can detect. **Test the hypothesis that hearing should be more sensitive (thus lower numbers) after sensory deprivation compared with before (use alpha = .05).** **BEFORE:** 11, 34, 18, 33, 35, 22, 35 **AFTER:** 13, 31, 18, 29, 32, 20, 28 1. What is the design of this study? ________________________ 2. What is the independent variable? ________________________ 3. What is the dependent variable? ________________________ 4. Is the hypothesis one-tailed or two-tailed? ________________________ 5. State the Hypotheses in symbols and words: - H₀: __________________ in words: ___________________________ - H₁: __________________ in words: ___________________________ **Create an Excel data file organized by rows. Each row is a participant. Variables – Before, After** Open this dataset in JASP. To test the experimenters’ hypothesis, perform a related samples t-test by selecting *T-Tests > Classical > Paired Samples t-test (Student t)*. - Select After as the first variable then Before as the second variable. - Under Alt Hypothesis indicate your directional prediction (Measure 1 < Measure 2) so after < before - Under Add Statistics choose Descriptives. Fill in these values from the significance table: - t = _______ - df = _______ - Sig. or p level = _______ (Note: This transcription is structured to maintain the educational format as intended.)
**Psych248 F20 - Lab 7 Worksheet: More Hypothesis Testing using t-test** **Part 2. Repeated Measures t** The data below are from a sensory deprivation study looking at hearing threshold before and after one hour in a sensory deprivation chamber. Seven subjects had their hearing checked both before and after they were in a dark, silent chamber. Hearing threshold is the minimum sound level you can detect. **Test the hypothesis that hearing should be more sensitive (thus lower numbers) after sensory deprivation compared with before (use alpha = .05).** **BEFORE:** 11, 34, 18, 33, 35, 22, 35 **AFTER:** 13, 31, 18, 29, 32, 20, 28 1. What is the design of this study? ________________________ 2. What is the independent variable? ________________________ 3. What is the dependent variable? ________________________ 4. Is the hypothesis one-tailed or two-tailed? ________________________ 5. State the Hypotheses in symbols and words: - H₀: __________________ in words: ___________________________ - H₁: __________________ in words: ___________________________ **Create an Excel data file organized by rows. Each row is a participant. Variables – Before, After** Open this dataset in JASP. To test the experimenters’ hypothesis, perform a related samples t-test by selecting *T-Tests > Classical > Paired Samples t-test (Student t)*. - Select After as the first variable then Before as the second variable. - Under Alt Hypothesis indicate your directional prediction (Measure 1 < Measure 2) so after < before - Under Add Statistics choose Descriptives. Fill in these values from the significance table: - t = _______ - df = _______ - Sig. or p level = _______ (Note: This transcription is structured to maintain the educational format as intended.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:**Psych248 F20 - Lab 7 Worksheet: More Hypothesis Testing using t-test**
**Part 2. Repeated Measures t**
The data below are from a sensory deprivation study looking at hearing threshold before and after one hour in a sensory deprivation chamber. Seven subjects had their hearing checked both before and after they were in a dark, silent chamber. Hearing threshold is the minimum sound level you can detect. **Test the hypothesis that hearing should be more sensitive (thus lower numbers) after sensory deprivation compared with before (use alpha = .05).**
**BEFORE:** 11, 34, 18, 33, 35, 22, 35
**AFTER:** 13, 31, 18, 29, 32, 20, 28
1. What is the design of this study? ________________________
2. What is the independent variable? ________________________
3. What is the dependent variable? ________________________
4. Is the hypothesis one-tailed or two-tailed? ________________________
5. State the Hypotheses in symbols and words:
- H₀: __________________ in words: ___________________________
- H₁: __________________ in words: ___________________________
**Create an Excel data file organized by rows. Each row is a participant. Variables – Before, After**
Open this dataset in JASP.
To test the experimenters’ hypothesis, perform a related samples t-test by selecting *T-Tests > Classical > Paired Samples t-test (Student t)*.
- Select After as the first variable then Before as the second variable.
- Under Alt Hypothesis indicate your directional prediction (Measure 1 < Measure 2) so after < before
- Under Add Statistics choose Descriptives.
Fill in these values from the significance table:
- t = _______
- df = _______
- Sig. or p level = _______
(Note: This transcription is structured to maintain the educational format as intended.)
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