What type of hypothesis is "Postoperative pediatric patients who use TENS (transcutaneous electric nerve stimulation) will have a different level of pain than pediatric postoperative patients who do not use TENS"?
1. Simple and directional.
2. Complex and directional.
3. Simple and nondirectional.
4. Complex and nondirectional.
3
Rationale 1: The hypothesis tests the relationship between one independent and one dependent variable, so it is simple; but it states pain level will be different between the groups but does not specify the difference, so it is nondirectional.
Rationale 2: The hypothesis tests the relationship between one independent and one dependent variable, so it is simple, not complex; it states pain level will be different between the groups but does not specify the difference, so it is nondirectional.
Rationale 3: The hypothesis tests the relationship between one independent and one dependent variable, so it is simple; it states pain level will be different between the groups but does not specify the difference, so it is nondirectional.
Rationale 4: The hypothesis tests the relationship between one independent and one dependent variable, so it is simple, not complex; it states pain level will be different between the groups but does not specify the difference, so it is nondirectional.
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