You are designing a study to test the efficacy of a new distraction technique on pain tolerance using a cold-pressor task (immersing hands in icy water). Using the findings from Ibolya, Brake, and Voss (2004), describe how you would apply their results to control for the experimenter's sex as an extraneous variable in your research design. Describe two specific control strategies you could implement.
Question: You are designing a study to test the efficacy of a new distraction technique on pain tolerance using a cold-pressor task (immersing hands in icy water). Using the findings from Ibolya, Brake, and Voss (2004), describe how you would apply their results to control for the experimenter's sex as an extraneous variable in your research design. Describe two specific control strategies you could implement.
Sample answer: To control for the experimenter's sex as an extraneous variable, a researcher must address the cross-sex interaction effect where participants tolerate pain longer when tested by an experimenter of the opposite sex. First, the researcher could standardize the experimenters by using only one sex (e.g., all female experimenters) for all participants. Second, the researcher could use a matched-sex design where male participants are only tested by male experimenters and female participants by female experimenters, thereby keeping the social context uniform across all trials.
Key points:
- Identify experimenter's sex as an extraneous variable affecting pain tolerance.
- Describe the cross-sex pain tolerance pattern (males tolerate longer with females; females tolerate longer with males).
- Propose a control strategy involving standardization of experimenter sex (e.g., all-male or all-female experimenters).
- Propose a control strategy involving matching or balancing participant and experimenter sex.
Rubric: To receive full credit, the answer must identify that the experimenter's sex can systematically alter pain tolerance based on participant sex (cross-sex tolerance effect). It must also propose two logical, concrete methodological strategies to control for this extraneous variable (such as using a single-sex experimenter pool, matching participant-experimenter sex, or balancing experimenter sex across conditions).
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Research Methods in Psychology - 4th American Edition @ KPU
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In a pain perception study, participants were asked to immerse their hands in icy water for as long as they could tolerate. The researchers found that male participants tolerated the pain longer when tested by a female experimenter, and female participants tolerated the pain longer when tested by a male experimenter, demonstrating that the experimenter's sex can act as an extraneous variable.
In the 2004 study by Ibolya, Brake, and Voss, participants immersed their hands in icy water to measure their pain tolerance. Which finding led the researchers to conclude that the experimenter's sex acted as an extraneous variable?
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In the 2004 study by Ibolya, Brake, and Voss, the experimenter's sex was classified as an extraneous variable because it only influenced the pain tolerance of male participants, while female participants' tolerance levels remained consistent regardless of the experimenter's sex.
You are designing a study to test the efficacy of a new distraction technique on pain tolerance using a cold-pressor task (immersing hands in icy water). Using the findings from Ibolya, Brake, and Voss (2004), describe how you would apply their results to control for the experimenter's sex as an extraneous variable in your research design. Describe two specific control strategies you could implement.
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In psychological research, variables are classified based on their role in the design. Evaluate why the experimenter's sex in Ibolya, Brake, and Voss's (2004) study is classified as an extraneous variable rather than a confounding variable, provided that participant characteristics were randomly distributed across experimenter conditions.
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In their 2004 pain perception experiment, Ibolya, Brake, and Voss demonstrated how the experimenter's sex can act as an extraneous variable. Deconstruct the psychological and methodological causal chain of this confounding effect by arranging the following steps in their correct chronological and logical order, starting from the initial setup to the final threat to internal validity.
When evaluating the methodological rigor of a proposed pain-tolerance study, a peer reviewer notices that the sex of the experimenters is not standardized across participant groups. According to the empirical evidence from Ibolya, Brake, and Voss (2004), the reviewer should judge this design as critically flawed because the experimenter's sex acts as an uncontrolled ________ variable, which introduces systematic bias and threatens the study's internal validity.